Channel state information reporting priority for low layer triggered mobility

Abstract

The invention relates to channel state information reporting priority for low layer triggered mobility. A method is provided that includes determining that at least two channel state information (CSI) reports are to be reported. The method includes calculating priority values associated with at least two CSI reports, at least one of the priority values being calculated based on determining that at least one of the at least two CSI reports is a low layer triggered mobility (LTM) CSI report. The method comprises determining that time occupancy of a physical channel scheduled to carry at least two CSI reports, which are thus referred to as conflicts, at least partially overlaps on a carrier. And the method comprises transmitting one or more CSI reports of the at least two CSI reports referred to as conflicts based on the priority value.

Description

Technical Field

[0001] The present disclosure generally relates to telecommunications, and more particularly to channel state information reporting priorities for low layer triggered mobility. Background Art

[0002] A telecommunications system can be regarded as a facility that enables a communication session between two or more entities (such as user terminals, base stations, and / or other nodes) by providing a carrier between various entities involved in the communication path. For example, a telecommunications system can be provided by means of a communication network and one or more compatible communication devices. A communication session can include, for example, communication of data for carrying communications (such as voice, video, email, text messages, multimedia, and / or content data, etc.). Non-limiting examples of the services provided include two-way or multi-way calls, data communication, or multimedia services, as well as access to a data network system such as the Internet.

[0003] In a radio telecommunications system, at least a part of a communication session between at least two stations occurs over a wireless link. Examples of wireless systems include public land mobile networks (PLMNs), satellite-based communication systems, and different wireless local networks (such as wireless local area networks (WLANs)). Some wireless systems can be divided into cells and are thus commonly referred to as cellular systems.

[0004] A user can access a telecommunications system by means of an appropriate communication device or terminal. The user's communication device can be referred to as a user equipment (UE) or user device. The communication device is provided with appropriate signal receiving and transmitting means for enabling communication, for example, enabling access to a communication network or direct communication with other users. The communication device can access a carrier provided by a station (such as a base station of a cell) and transmit and / or receive communications on the carrier.

[0005] Telecommunications systems and associated devices generally operate according to a given standard or specification that states what the various entities associated with the system are allowed to do and how it should be implemented. It is also usually defined which communication protocols and / or parameters will be used for the connection. An example of a telecommunications system is the Universal Mobile Telecommunications System (UMTS). Other examples of telecommunications systems are Long Term Evolution (LTE), LTE-Advanced, and the so-called 5G or New Radio (NR) networks. NR is being standardized by the 3rd Generation Partnership Project (3GPP). Summary of the Invention

[0006] Example implementations of the present disclosure generally pertain to telecommunications, and more particularly to channel state information reporting priorities for low layer triggered mobility. The present disclosure includes, but is not limited to, the following example implementations.

[0007] Some example implementations provide an apparatus including: at least one memory configured to store instructions; and at least one processing circuitry configured to access the at least one memory and execute the instructions to cause the apparatus to at least: determine that at least two channel state information (CSI) reports are to be reported; calculate priority values associated with the at least two CSI reports, at least one of the priority values being calculated based on determining that at least one of the at least two CSI reports is a low layer triggered mobility (LTM) CSI report; determine that time occupancy of physical channels scheduled to carry the at least two CSI reports overlaps at least partially on a carrier, the at least two CSI reports thus being referred to as conflicting; and based on the priority values, transmit one or more of the at least two CSI reports referred to as conflicting.

[0008] Some example implementations provide an apparatus including: means for determining that at least two channel state information (CSI) reports are to be reported; means for calculating priority values associated with the at least two CSI reports, at least one of the priority values being calculated based on determining that at least one of the at least two CSI reports is a low layer triggered mobility (LTM) CSI report; means for determining that time occupancy of physical channels scheduled to carry the at least two CSI reports overlaps at least partially on a carrier, the at least two CSI reports thus being referred to as conflicting; and means for transmitting one or more of the at least two CSI reports referred to as conflicting based on the priority values.

[0009] Some example implementations provide a method including: determining that at least two channel state information (CSI) reports are to be reported; calculating priority values associated with the at least two CSI reports, at least one of the priority values being calculated based on determining that at least one of the at least two CSI reports is a low layer triggered mobility (LTM) CSI report; determining that time occupancy of physical channels scheduled to carry the at least two CSI reports overlaps at least partially on a carrier, the at least two CSI reports thus being referred to as conflicting; and based on the priority values, transmitting one or more of the at least two CSI reports referred to as conflicting.

[0010] Some example implementations provide a non-transitory computer-readable storage medium having instructions stored therein that, in response to execution by at least one processing circuitry, cause a device to at least: determine that at least two channel state information (CSI) reports are to be reported; calculate a priority value associated with the at least two CSI reports, wherein at least one of the priority values is calculated based on determining that at least one of the at least two CSI reports is a low layer triggered mobility (LTM) CSI report; determine that a time occupancy of a physical channel scheduled to carry the at least two CSI reports overlaps at least partially on a carrier, and the at least two CSI reports are thus referred to as being in conflict; and based on the priority value, transmit one or more of the at least two CSI reports referred to as being in conflict.

[0011] These and other features, aspects, and advantages of the present disclosure will be apparent from the following detailed description and the accompanying drawings, which are briefly described below. The present disclosure includes any combination of two, three, four, or more features or elements set forth in the present disclosure, whether or not such features or elements are explicitly combined or otherwise recited in the specific example implementations described herein. The present disclosure is intended to be read as a whole such that in any aspect and example implementation of the present disclosure, any separable feature or element of the present disclosure should be considered combinable unless the context of the present disclosure clearly indicates otherwise.

[0012] Accordingly, it should be understood that the present invention content is provided merely for the purpose of summarizing some example implementations in order to provide a basic understanding of some aspects of the present disclosure. Accordingly, it should be understood that the above-described example implementations are merely examples and should not be construed as in any way narrowing the scope or spirit of the present disclosure. Other example implementations, aspects, and advantages will become apparent from the following detailed description in conjunction with the accompanying drawings, which illustrate by way of example the principles of some of the described example implementations. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The example implementations of the present disclosure have been described in such general terms, and now reference will be made to the accompanying drawings, which need not be drawn to scale and in which:

[0014] Figure 1 illustrates a telecommunications system including one or more public land mobile networks (PLMNs) coupled to one or more external data networks, according to some example implementations of the present disclosure;

[0015] Figure 2 illustrates a 5G deployment of a PLMN, according to some example implementations;

[0016] Figure 3 The signaling diagram for the low layer triggered mobility (LTM) process is illustrated;

[0017] Figure 4A and Figure 4B The signaling diagram of the LTM process in the CU-DU split architecture is illustrated;

[0018] Figure 5 is a flowchart illustrating the respective steps in a method that can be implemented at a user equipment according to some examples; and

[0019] Figure 6 illustrates an apparatus according to some examples. Detailed implementation

[0020] Some implementations of the present disclosure will now be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all, implementations of the present disclosure are shown. In fact, the various implementations of the present disclosure may be embodied in many different forms and should not be construed as limited to the implementations set forth herein; rather, these example implementations are provided so that this disclosure will be thorough and complete and will fully convey the scope of the present disclosure to those skilled in the art. Like reference numerals always refer to like elements.

[0021] Unless otherwise specified or clearly specified from the context, references to first, second, and the like should not be construed as implying a particular order. A feature described as being above another feature (unless otherwise specified or clearly specified from the context) may instead be below that other feature, and vice versa; and similarly, a feature described as being to the left of another feature may alternatively be to the right of that other feature, and vice versa. In addition, although this document may refer to quantitative measurements, values, geometric relationships, or the like, unless otherwise stated, any one or more of these (if not all) may be absolute or approximate to account for acceptable variations that may occur, such as variations due to engineering tolerances or the like.

[0022] As used herein, unless otherwise specified or clear from the context, the "or" of operands is "inclusive or" and thus is true if and only if one or more of the operands are true, as opposed to "exclusive or" which is false when all of the operands are true. Thus, for example, "[A] or [B]" is true if [A] is true, or if [B] is true, or if both [A] and [B] are true. Further, the articles "a" and "an" mean "one or more" unless otherwise specified or clear from the context that the article refers to the singular form. Additionally, it should be understood that unless otherwise specified, the terms "data", "content", "digital content", "information" and similar terms may sometimes be used interchangeably. The term "network" can refer to a group of interconnected computers including clients and servers; and within the network, the computers can be directly or indirectly interconnected in various ways including via one or more switches, routers, gateways, access points, or the like.

[0023] This document may refer to specific systems, architectures, or other such specialized terms, but it should be understood that the example implementations of the present disclosure can equally apply to any one of a plurality of systems, architectures, and the like. For example, reference may be made to 3GPP technologies such as Global System for Mobile Communications (GSM), UMTS, LTE, LTE Advanced, 5G NR, 5G Advanced, and 6G; however, it should be understood that the example implementations of the present disclosure can equally apply to non-3GPP technologies such as IEEE 802, Bluetooth, and Bluetooth Low Energy.

[0024] Additionally, as used in this application, the term "circuitry" can refer to one or more or all of the following: (a) only hardware circuit implementations (such as only implementations in analog circuits and / or digital circuitry); (b) a combination of hardware circuits and software, such as (as applicable): (i) a combination of (multiple) analog circuits and / or (multiple) digital hardware circuits with software / firmware, and (ii) any portion of (multiple) hardware processors (including (multiple) digital signal processors), software, and (multiple) memories that work together to cause a device such as a mobile phone or a server to perform various functions); or (c) (multiple) hardware circuits and / or (multiple) processors, such as (multiple) microprocessors or portions of (multiple) microprocessors, which require software (e.g., firmware) to operate, but the software may be absent when not needed to run.

[0025] The above definition of circuitry applies to all uses of the term in this application, including in any claims. As another example, as used in this application, the term circuitry also encompasses implementations of only hardware circuits or processors (or multiple processors) or portions of hardware circuits or processors and their accompanying software and / or firmware. The term circuit also encompasses (e.g., and if applicable to a particular claim element) a baseband integrated circuit or a processor integrated circuit for a mobile device, or a similar integrated circuit in a server, a cellular network device, or other computing or network device.

[0026] Figure 1 FIG. illustrates a telecommunications system 100 implemented in accordance with various examples of the present disclosure. The telecommunications system generally includes one or more telecommunications networks. As shown, for example, the system includes one or more public land mobile networks (PLMNs) 102 coupled to one or more other external data networks 104, which mainly include wide area networks (WANs) such as the Internet. Each PLMN in the PLMNs includes a core network (CN) 106 backbone, such as an evolved packet core (EPC) for LTE, a 5G core network (5GC), or the like; and each of the core network and the Internet is coupled to one or more radio access networks (RANs) 108 that implement one or more radio access technologies (RATs), air interfaces, or the like. As used herein, "network device" refers to any suitable device at the network side of a telecommunications network. Examples of suitable network devices are described in more detail below.

[0027] In addition, the system includes one or more radio units, which may be variously referred to as user equipment (UE) 110, terminal device, terminal equipment, mobile station, or the like. A UE is generally a device configured to communicate with network equipment in a telecommunication network or with another UE. A UE may be a portable computer (e.g., laptop computer, notebook computer, tablet computer), a mobile phone (e.g., cellular phone, smartphone), a wearable computer (e.g., smartwatch), or the like. In other examples, a UE may be an Internet of Things (IoT) device, an industrial IoT (IIoT device), a vehicle equipped with vehicle-to-everything (V2X) communication technology, or the like. In operation, the UE may be configured to connect to one or more RANs in RAN 108 according to their specific radio access technology, so as to access a specific CN 106 of PLMN 102 or one or more external data networks in external data network 104 (e.g., the Internet). The external data network may be configured to provide Internet access, operator services, third-party services, etc. For example, the International Telecommunication Union (ITU) has classified 5G mobile network services into three categories: enhanced mobile broadband (eMBB), ultra-reliable low-latency communication (URLLC), and massive machine type communication (mMTC), or massive Internet of Things (MIoT).

[0028] Examples of radio access technologies include 3GPP radio access technologies such as GSM, UMTS, LTE, LTE Advanced, 5G NR, 5G Advanced, and 6G. Other examples of radio access technologies include IEEE 802 technologies such as IEEE 802.11 (Wi-Fi), IEEE 802.15 (including 802.15.1 (WPAN / Bluetooth), 802.15.4 (Zigbee), and 802.15.6 (WBAN)), Bluetooth, Bluetooth Low Energy (BLE), Ultra Wideband (UWB), and the like. Generally, radio access technology may refer to any 2G, 3G, 4G, 5G, 6G, or higher-generation mobile communication technology and its different versions, and to any other radio access technology that can be arranged to interoperate with such mobile communication technologies to provide access to the CN 106 of a mobile network operator (MNO).

[0029] In various examples, RAN 108 can be configured as one or more macro cells, micro cells, pico cells, femto cells, etc. The RAN can generally include one or more radio access nodes configured to interact with UE 110. In various examples, the radio access node can be referred to as a base station (BS), access point (AP), base transceiver station (BTS), Node B (NB), evolved NB (eNB), macro BS, NB (MNB) or eNB (MeNB), home BS, NB (HNB) or eNB (HeNB), next-generation NB (gNB), enhanced gNB (en-gNB), next-generation eNB (ng-eNB), or the like. The RAN can include some type of network control / governance entity responsible for the control of the radio access nodes. The network control / governance entity and the radio access nodes can be separate or integrated into a single device. The network control / governance entity can include processing circuitry configured to perform various management functions, etc. The processing circuitry can be associated with a memory, computer-readable storage medium, or database for maintaining information required in the management functions.

[0030] RAN 108 can be centralized or distributed. In various examples, the components of the RAN can be interconnected via Ethernet, Gigabit Ethernet, asynchronous transfer mode (ATM), optical fiber, dark fiber, passive wavelength division multiplexing (WDM), WDM passive optical network (WDM-PON), optical transport network (OTN), time-sensitive networking (TSN), and / or any other data link layer network that may include radio links. The RAN can be connected to CN 106 via one or more gateways, network functions, or the like.

[0031] As should be understood, PLMN 102 can be deployed in a variety of different ways. In a 4G LTE deployment, the EPC is CN106, and the evolved UMTS terrestrial radio access network (E-UTRAN) is RAN 108; and the E-UTRAN includes one or more eNBs (radio access nodes) configured to connect UE 110 to the E-UTRAN to access the EPC. As Figure 2 shown, in a 5G deployment 200, the 5GC 202 is the CN, and the next-generation (NG) radio access network (NG-RAN) 204 is the RAN; the NG-RAN includes one or more gNBs 206 (radio access nodes) configured to connect UE 208 to the NG-RAN to access the 5GC. The term "gNB" in 5G can correspond to the eNB in 4G LTE.

[0032] In particular, some deployments of 4G LTE and 5G are considered as Standalone (SA) deployments. Other deployments combine 4G LTE and 5G technologies and are referred to as Non-Standalone (NSA) deployments. In some deployments, the E-UTRAN includes one or more ng-eNBs configured to communicate with the 5GC and also may be configured to communicate with one or more gNBs. Similarly, in another deployment, the NG-RAN may include one or more en-gNBs configured to communicate with the EPC and also may be configured to communicate with one or more eNBs. In various instances, a single UE 110, UE 208 of a dual-mode or multi-mode UE may support multiple (two or more) RANs and thus be configured to connect to multiple RANs (such as 4G LTE and 5G).

[0033] In various instances, a single UE 110, UE 208 of a dual-mode or multi-mode UE may support multiple (two or more) RANs and thus be configured to connect to multiple RANs. For example, a particular UE may support both LTE and 5G NR radio access technologies. Here, multiple deployments support Dual Connectivity (DC) and in some specific examples support Multi-Radio Dual Connectivity (MR-DC), where a UE may be configured to connect to two different radio access nodes connected via a non-ideal backhaul, where one of the radio access nodes provides NR access and the other radio access node provides E-UTRA or NR access. In this deployment, one radio access node may serve as the Master Node (MN) and the other radio access node may serve as the Secondary Node (SN).

[0034] In a deployment such as 5G deployment 200, node operations can be performed at least in part in a central / centralized unit (CU) 210 (such as a server, host, or node) that is operatively coupled to a distributed unit (DU) 212 (such as a radio head / node). Node operations may also be distributed among multiple servers, hosts, or nodes. It should also be understood that the distribution of work between 5GC 202 operations and gNB 204 operations may vary depending on the implementation. Thus, the 5G network architecture may be based on a so-called CU-DU split. One gNB-CU (central node) may control one or more gNB-DUs. The gNB-CU may control multiple spatially separated gNB-DUs that at least function as transmit / receive (Tx / Rx) nodes. However, in some example implementations, the gNB-DU (also referred to as the DU) may include, for example, a radio link control (RLC), a media access control (MAC), and a physical (PHY) layer, while the gNB-CU (also referred to as the CU) may include layers above the RLC, such as a packet data convergence protocol (PDCP), a radio resource control (RRC), and an Internet protocol (IP) layer. Other functional splits are possible. Those skilled in the art are considered to be familiar with the Open Systems Interconnection (OSI) model and the functions within each layer.

[0035] In some example implementations, the server or CU 210 may generate a virtual network through which the server communicates with radio nodes. Generally, virtual networking may involve the process of combining hardware and software network resources and network functions into a single software-based management entity (virtual network). Such a virtual network may provide a flexible distribution of operations between the server and the radio head / node. In practice, any digital signal processing tasks may be performed in the CU or DU 212, and the boundary for transferring responsibilities between the CU and the DU may be selected according to the implementation.

[0036] To support advanced communication technologies such as beamforming, a multi-antenna MIMO (multiple-input and multiple-output) deployment such as 5G deployment 200 provides UE procedures for reporting channel state information (CSI) that indicates the channel quality at a specific time. In 5G, CSI can include, for example, a channel quality indicator (CQI), a precoding matrix indicator (PMI), a CSI reference signal (CSI-RS) resource indicator (CRI), a synchronization signal (SS) / physical broadcast channel (PBCH) block (SSB) resource indicator (SSBRI), a layer indicator (LI), a rank indicator (RI), a L1 reference signal received power (L1-RSRP), a L1 signal-to-interference-plus-noise ratio (L1-SINR), or a capability index. The network (e.g., gNB 206) can reserve a physical uplink control channel (PUCCH) or a physical uplink shared channel (PUSCH) for UE 208 to report CSI in a CSI report.

[0037] CSI report settings can be configured in a CSI-ReportConfig, which can be aperiodic (using PUSCH), periodic (using PUCCH), or semi-persistent (using PUCCH and a downlink control information (DCI)-activated PUSCH). CSI-RS resources can be periodic, semi-persistent, or aperiodic. The CSI report configuration can include, for example, an information element (IE) (carrier) through which a downlink (DL) component carrier (CC) is configured in which the UE can perform CSI measurements. For CSI carried by PUCCH, the CSI report configuration can be configured in the cell in which the PUCCH is transmitted to carry the corresponding CSI report. And for CSI carried by PUSCH, the CSI report configuration can be configured in the cell that schedules the PUSCH to carry the corresponding CSI report.

[0038] Priority rules can be used for CSI reporting on PUSCH. For example, for two overlapping PUSCHs, the priority rules can be applied to physical channels with the same priority index. CSI reports can be associated with priority values:

[0039] Pri iCSI (y,k,c,s) = 2·N cells ·M S ·y + N cells ·M S ·k + M S ·c + s

[0040] In the above CSI priority formula, for the aperiodic CSI report y = 0 to be carried on the PUSCH, for the semi-persistent CSI report y = 1 to be carried on the PUSCH, for the semi-persistent CSI report y = 2 to be carried on the PUCCH, and for the periodic CSI report y = 3 to be carried on the PUCCH. In addition, for the CSI report k = 0 carrying L1-RSRP or L1-SINR, for the CSI report k = 1 not carrying L1-RSRP or L1-SINR. In addition, c can be the serving cell index, which can be for the serving cell containing the CSI-RS resource for CSI measurement; and N cells can refer to the maximum number of serving cells (maxNrofServingCells), to which the UE 208 can be simultaneously connected. Similarly, s can be the report configuration identifier (reportConfigID), and M s can refer to the maximum number of CSI report configurations (maxNrofCSI-ReportConfigurations) that can be associated with the UE. According to the CSI priority formula, if the associated Pri iCSI (y,k,c,s) value for the first CSI report is lower than the associated Pri iCSI (y,k,c,s) value for the second CSI report, then the first CSI report can have a higher priority than the second CSI report.

[0041] If the time occupancy of the physical channel scheduled to carry the CSI report overlaps in at least one orthogonal frequency division multiplexing (OFDM) symbol and is transmitted on the same carrier, then the two CSI reports can be considered to conflict. As currently specified, when the UE 208 is configured to transmit two conflicting CSI reports, if the y values between the two CSI reports are different, then the CSI report with the high Pri iCSI (y,k,c,s) value can not be sent by the UE, except if one of the y values is 2 and the other y value is 3 (for the CSI report transmitted on the PUSCH). Otherwise, the two CSI reports can be multiplexed or discarded based on the priority value.

[0042] If the semi-persistent CSI report to be carried on the PUSCH overlaps in time with the PUSCH data transmission in one or more symbols on the same carrier, and if the earliest symbol of the PUSCH channel does not start earlier than N 2 +d 2,1 symbols after the last symbol of the DCI scheduling the PUSCH, where d 2,1is d associated with the PUSCH carrying semi-persistent CSI reports and the PUSCH with data transmission 2,1 If the maximum value of, the UE 208 may not send a CSI report. Otherwise, if the timeline requirements are not met, this may be an error condition.

[0043] If the UE 208 transmits a first PUSCH including a semi-persistent CSI report and a second PUSCH including an uplink (UL) shared channel (SCH) on the same carrier, and the first PUSCH transmission overlaps with the second PUSCH transmission in time, the UE may not transmit the first PUSCH and instead transmit the second PUSCH. When at least one of the first PUSCH transmission or the second PUSCH transmission is in response to DCI format detection by the UE, the UE may expect the first PUSCH transmission and the second PUSCH transmission to meet the above timing conditions for PUSCH transmissions overlapping in time.

[0044] Currently in 3GPP, mainstream mobility has been performed using higher layer (layer 3, L3, or RRC-controlled) mobility. Here, L3 handover-based mobility is a well-known and proven method for ensuring a robust way to hand over the UE 208 from one serving cell (source cell) of a radio access node (e.g., gNB 206) to a new serving cell (target cell) of the same or another radio access node. This method has been used at least since GSM and is still used in 5G NR. It is expected that L3 mobility (traditional handover) will also be widely used in the future.

[0045] However, as the wireless generations evolve, the need for new and different solutions also evolves, which enable a more flexible, more efficient, and sometimes faster process, making the system appear more agile. One such enhancement includes moving the execution of "handover" from one cell to another from a higher layer (L3) (such as RRC) to a lower layer. The lower layer can be PHY (or layer 1, L1) or MAC (or layer 2, L2). This feature is currently referred to as L1 / L2-triggered mobility, or lower layer-triggered mobility (LTM), which can reduce latency, overhead, and interruption time compared to L3 handover-based mobility. In a CU-DU split architecture, LTM can support one or more of in-DU mobility, CU-internal DU-to-DU mobility, or CU-to-CU DU-to-DU mobility.

[0046] LTM can be a cell switching process where the network can exchange the UE's primary serving cell (PCell or PSCell) by sending cell switching commands such as MAC control elements (MAC-CE). This LTM cell switching decision can be based on measurements (L1 measurements) performed and reported by the UE (L1 measurement reports). The measurements and reports are based on the LTM candidate cell configuration provided by the network for one or more LTM candidate cells. The LTM candidate cells can be neighboring cells or the UE's current secondary serving cells (e.g., SCell).

[0047] Figure 3 The signaling diagram illustrates the LTM process for a UE 208 in the RRC connected state with a gNB 206 that has been proposed. During LTM preparation, as shown at step 301, the UE sends an L3 measurement report to the gNB, which decides to use LTM and initiates LTM candidate preparation. The gNB sends an RRC reconfiguration message to the UE at step 302, which includes the configuration of one or more candidate target cells. The RRC reconfiguration message may also include the configuration of the L1 measurement report for LTM execution. The UE stores the configuration, and the UE sends an RRC reconfiguration complete message to the gNB at step 303.

[0048] Early synchronization of the UE 208 with the (multiple) candidate target cells follows LTM preparation. As shown at step 304, the UE 208 performs downlink (DL) / uplink (UL) synchronization with the (multiple) candidate target cells. During this process, the UE can obtain the timing advance (TA) of the corresponding candidate target cell in the (multiple) candidate target cells. Compared with mobility based on L3 handover, this early synchronization can reduce the interruption during LTM execution. Here, the TA can be used to control the timing of the UE's uplink transmission towards the (multiple) candidate target cells. The UE can also have the TA of the gNB's cell that has been obtained to control the timing of the uplink transmission towards the gNB.

[0049] During LTM execution, the UE 208 performs L1 measurements on the configured (multiple) candidate target cells, and the UE sends an L1 measurement report to the gNB 206 at step 305. The gNB decides to perform cell switching and selects one of the (multiple) candidate target cells as the target cell for cell switching. Then, the gNB sends a cell switching command (e.g., MAC-CE) at step 306 to trigger cell switching. The UE switches to the configuration of the target cell; and if the TA of the target cell (from step 304) is no longer available, the UE initiates a random access channel (RACH) process with the target cell at step 307 to obtain the TA of the target cell. Then, the UE indicates the successful completion of the cell switching at step 308.

[0050] Figure 4A and Figure 4B illustrates a signaling diagram for the LTM process in a CU-DU split architecture, including CU 210, a source DU (S-DU) 212A of a serving cell, and a target DU (T-DU) 212B of a target cell. During the preparation for LTM, as shown at steps 401 and 402, UE 208 sends an L3 measurement report to the CU via the S-DU, and the CU decides at step 403 to prepare one or more candidate target cells (DUs) for LTM. As shown at steps 404, 405, 406, and 407, the CU continues with the UE context setup / modification process. At step 408, the CU generates an (RRC) reconfiguration for the configured candidate target cell(s); and at steps 409 and 410, the CU provides the configuration to UE 208 via the S-DU.

[0051] At steps 408, 409, and 410, CU 210 also configures UE 208 with the L1 measurement report performed for LTM. The CU provides the TA acquisition trigger criterion and the configuration(s), and the cell handover trigger criterion and the configuration(s) to S-DU 212A. The trigger criteria for TA acquisition and cell handover can be similar to the measurement event report trigger conditions, e.g., A3, A4, or A5 event conditions, or the validity of the acquired TA. The trigger conditions can include, for example, filter configuration (for L1 measurement), trigger offset, cell individual offset, or the like.

[0052] At steps 411 and 412, UE 208 sends an RRC reconfiguration complete to CU 210 via S-DU 212A.

[0053] During execution, before step 413, UE 208 performs L1 measurements on the configured (multiple) candidate target cells and sends an L1 measurement report to S-DU 212A. The S-DU decides at step 414 to trigger TA acquisition for the (multiple) candidate target cells (including the cell of T-DU 212B), and the S-DU sends a TA acquisition command to UE 208 at step 415. The UE sends a random access preamble to the (multiple) candidate target cells (T-DU 212B / cell) at step 416 to signal the (multiple) candidate target cells to estimate the TA between the UE and the (multiple) candidate target cells. And at step 417, S-DU 212A / cell indirectly receives a random access response (RAR) from the corresponding candidate target cell of the (multiple) candidate target cells via CU 210. Alternatively, the UE may indirectly receive the RAR of the corresponding candidate target cell of the (multiple) candidate target cells via the CU and the S-DU.

[0054] UE 208 sends the L1 measurements of the (multiple) candidate target cells to S-DU 212A at step 418. The S-DU decides at steps 419 and 420 to initiate a cell change to T-DU 212B / cell and sends a cell swap command (e.g., MAC-CE) to trigger the cell swap. In the example where the RAR is received at the S-DU at step 417 (instead of the UE), the S-DU provides the TA of the T-DU / cell to the UE. If the TA of the T-DU / cell is still valid, the UE may skip the RACH procedure at step 421 when performing the cell swap. And at steps 422, 423, 424, and 425, the UE, S-DU, T-DU, and CU continue with the completion of the LTM procedure.

[0055] In LTM, the L1 measurement report may be an LTM CSI report, and the L1 measurements may include RSRP measurements (such as L1-RSRP). The L1 RSRP measurement is a measurement of the power received from a reference signal (RS). In some examples, the reference signal may be a synchronization signal (SS), with a corresponding RSRP measurement called SS-RSRP. In other examples, the reference signal may be a CSI-RS, with a corresponding RSRP measurement called CSI-RSRP. In particular, SS-RSRP may be defined as the linear average of the power contributions of the resource elements carrying the secondary synchronization signal (SSS). SS-RSRP may be measured in the reference signal of the corresponding SSB.

[0056] In some examples, the UE 208 may be provided with information about measurement resources (e.g., SSB) from LTM candidate cells such that the UE can perform appropriate L1 measurements. The LTM CSI report settings may also be configured in an LTM CSI report configuration (LTM-CSI-ReportConfig), which may be aperiodic (using PUSCH), periodic (using PUCCH), or semi-persistent (using PUCCH or PUSCH). The LTM CSI report configuration may include (multiple) parameters for time-domain behavior provided by a configuration type (ltm-ReportConfigType), which may be set to "aperiodic", "semiPersistentOnPUCCH", "semiPersistentOnPUSCH", or "periodic". For "periodic", and "semiPersistentOnPUCCH" / "semiPersistentOnPUSCH" CSI reports, the configured periodicity and slot offset apply to the numerology of the UL BWP in which the CSI report is configured to be transmitted. The parameters in the LTM CSI report configuration may also include the number of candidate cells (noOfReportedCells) and the number of reference signals per candidate cell (noOfReportedRS-PerCell), where the candidate cells include L1 measurement results (spCellInclusion) associated with the current secondary serving cell SpCell (if so configured).

[0057] In some examples, the UE 208 may be configured with a set of LTM CSI report configurations, including one or more LTM CSI report configurations (LTM-CSI-ReportConfigs). The UE may also be individually configured with a CSI report configuration for CSI reports that are not LTM CSI reports (sometimes referred to as a legacy CSI report configuration for legacy CSI reports), which may be used for serving cell beam management (BM) and CSI acquisition. Each CSI report configuration (LTM and legacy / service cell CSI report / BM CSI report) in the CSI report configuration may have its own identifier (ID) space or a range of ID values running from 0 to some number (report configuration identity). As an example, legacy (or service cell CSI report / BM CSI report) may have an ID space / value range for legacy CSI report configurations. As an example, LTM CSI may have an LTM-specific ID space / value range for LTM CSI report configurations.

[0058] The UE 208 can be configured with one or more LTM CSI reporting configurations, and each LTM CSI reporting configuration in the one or more LTM CSI reporting configurations includes an LTM CSI resource configuration, which contains information about resources to be used for channel measurements (e.g., L1-RSRP measurement). The LTM CSI resource configuration may include SSBs from one or more candidate cells. For each LTM CSI reporting configuration, the UE can be configured to report M beams from each of the L configured candidate cells. Here, each LTM CSI resource configuration (LTM-CSI-ResourceConfig) may include a configuration of an LTM-CSI-SSB-ResourceSet, which includes a list of Z≥1 SS / PBCH block indices (given by 1tm-CSI-SSB-ResourceList) and a list of Z LTM-CandidateIds (given by 1tm-CandidateIDList), and the list of Z LTM-CandidateIds refers to the candidate cells associated with the SS / PBCH block indices. For each candidate cell, the UE can determine the time-domain behavior of the SS / PBCH block resources according to ssb-periodicity and ssb-PositionsInBurst, and the frequency-domain behavior of the SS / PBCH block resources can be determined by the higher-layer parameters subCarrierSpacing and ssbFrequency.

[0059] If the UE 208 is configured with an LTM CSI report configuration (LTM-CSI-ReportConfig), and if the UE is configured with spCellInclusion, the UE may report noOfReportedRS-PerCell different SSBRIs for each of the current SpCell and noOfReportedCell – 1 candidate cells in a single report instance. Otherwise, the UE may report noOfReportedRS-PerCell different SSBRIs for each of the noOfReportedCell candidate cells in a single report instance. Here, SSBRI k (k≥0) may correspond to the configured (k + 1)-th entry of the associated ltm-CSI-SSB-ResourceList in the corresponding LTM-CSI-SSB-ResourceSet. And if spCellInclusion is configured, the SSB resources in the ltm-CSI-SSB-ResourceList associated with the current SpCell may be the entries in which the physical layer cell ID (PCI) and frequency information (e.g., given by the SSB frequency) of the associated candidate cell (given in the ltm-CandidateIdList) are equal to the PCI and frequency information (given by the SSB frequency) of the current SpCell.

[0060] In cases of conflict between LTM CSI reports and legacy CSI reports, LTM CSI reports may be prioritized. As an example, if the time occupancy of the physical channel scheduled to carry LTM CSI reports and legacy CSI reports overlaps in at least one OFDM symbol and is transmitted on the same carrier, the LTM CSI report may be sent because it has a higher priority than the legacy CSI report. Another example, if the CSI priority formula (Pri iCSI (y,k,c,s) = 2·N cells ·M S ·y + N cells ·M S ·k + M S· If the same priority value is given for the conflicting LTM CSI report and the legacy (serving cell BM) CSI report, the LTM CSI report can be prioritized. However, in the case where two LTM CSI reports conflict, the CSI priority formula may not be sufficient to appropriately capture the LTM CSI report priority. The serving cell index c for the legacy CSI report can refer to the serving cell containing the CSI-RS resource for CSI measurement, but this may be insufficient for the LTM CSI report because beam measurements from multiple cells can be reported in the same LTM CSI report.

[0061] According to some example implementations of the present disclosure, the UE 208 can be configured to calculate a priority value for at least one CSI report based on determining that the CSI report is an LTM CSI report. This can include, for example, a specific specification of the serving cell index c variable for the LTM CSI report. Some examples can also include a specific specification of the N cells variable for the LTM CSI report. For the LTM CSI report and the legacy CSI report, the UE can prioritize the LTM CSI report; and for two LTM CSI reports or two legacy CSI reports, the UE can prioritize the reports according to the corresponding priority values of the reports. In some examples, for the LTM CSI report and the legacy CSI report, the UE can prioritize the reports according to the corresponding priority values of the reports.

[0062] More generally, according to some example implementations, the UE 208 can be configured to determine to report at least two CSI reports, such as based on the CSI report configuration. The UE can be configured to calculate a priority value associated with the CSI report. Here, at least one of the priority values can be calculated based on determining that at least one of the CSI reports in the CSI report is an LTM CSI report. Here, the LTM CSI report can be associated with an LTM CSI report configuration, such as an LTM CSI report configuration for reporting measurements for one or more cells, the one or more cells including one or more candidate cells configured for LTM. The UE can be configured to determine that the CSI reports conflict because the time occupancy of the physical channel scheduled to carry the CSI report overlaps at least partially on the carrier. And the UE can be configured to transmit one or more CSI reports referred to as conflicting based on the priority values. The UE can be configured to transmit one or more CSI reports at step 305 ( Figure 3 ) or at step 418 ( Figure 4B ) where appropriate determinations are made in advance.

[0063] UE 208 can calculate the priority value associated with the LTM CSI report in a variety of different ways. In some examples, the priority value can be based on the CSI priority formula (Pri iCSI (y,k,c,s) = 2·N cells ·M S ·y + N cells ·M S ·k + M S ·c + s), where either or both of the serving cell index c variable or the N cells variable are specified for the LTM CSI report.

[0064] In some examples where the LTM CSI report is associated with an LTM CSI report configuration, the priority value can be calculated based on the serving cell index value for the serving cell (e.g., PCell or PSCell) where the LTM CSI report configuration is configured. In other examples, the priority value associated with the LTM CSI report can be calculated based on the serving cell index value for the serving cell where the LTM CSI report configuration will be configured. In some examples, this can also be the cell in which the PUCCH / PUSCH is transmitted to carry the LTM CSI report. Specifically, for example, the serving cell index c used for priority value calculation can refer to the serving cell index value for the serving cell where the LTM CSI report configuration is configured or where the LTM CSI report will be reported to the serving cell.

[0065] In some other examples, the priority value associated with the LTM CSI report can be calculated based on a CSI priority formula that includes any one or both of the following terms: the serving cell index c variable, or the maximum number N cells of serving cells that is set to a predefined (i.e., predetermined / specified) value, and the predefined value can be a constant value.

[0066] In other examples, the UE 208 may calculate a priority value associated with the LTM CSI report based on a candidate cell identifier for one of the candidate cells in the LTM CSI report configuration. Here, the serving cell index c for priority value calculation may refer to the candidate cell identifier for one of the candidate cells. The cell identifier may be, for example, the lowest candidate cell identifier for the candidate cells, or the lowest candidate cell identifier for the candidate cells that is not the current serving cell (e.g., the current primary serving cell), which may be the lowest candidate cell identifier that sends a reference signal to the UE for one or more measurements. In another example, the cell identifier may be the lowest candidate cell identifier for which measurements with valid measurement values (e.g., L1-RSRP) are being reported in the LTM CSI report.

[0067] In yet another example, the cell identifier for priority value calculation for the LTM CSI report may be the lowest cell identifier for the candidate cells for which: at least one transmission configuration indicator (TCI) state has been activated, a timing advance (TA) has been obtained using UE-based TA measurements, and / or a physical random access channel (PRACH) transmission of a physical downlink control channel (PDCCH) command has been performed. In another example, the lowest cell identifier may be the lowest cell identifier for the measurements with valid measurement values (e.g., L1-RSRP) being reported, and for which: at least one TCI state has been activated, a TA has been obtained using UE-based TA measurements, and / or a PRACH transmission of a PDCCH command has been performed.

[0068] In some examples, the priority value associated with the LTM CSI report may be calculated based on the maximum number of candidate cells configured for LTM. Here, the maximum number N of serving cells in the CSI priority formula cells The variable may refer to the maximum number of candidate cells configured for LTM. The maximum value may be the maximum number of candidate cells configured for measurements and reports associated with the LTM CSI report. In another example, the maximum value may be the maximum number of candidate cells configured for measurements and reports in all configured LTM CSI reports for the current primary serving cell.

[0069] To further illustrate some example implementations of the present disclosure, a priority value associated with a CSI report may be calculated based on the CSI priority formula:

[0070] Pri iCSI (y,k,c,s) = 2·Ncells ·M S ·y + N cells ·M S ·k + M S ·c + s

[0071] where y = 0, 1, 2, or 3, and k = 0 or 1, as described above. Similarly, s can be a report configuration identifier (reportConfigID), and M s can refer to the maximum number of CSI report configurations (maxNrofCSI-ReportConfigurations) that can be associated with a UE, also as described above. And for legacy LTM CSI reports, c can be a serving cell index for the serving cell that includes CSI-RS resources for CSI measurement; and N cells can refer to the maximum number of serving cells (maxNrofServingCells) to which UE 208 can be simultaneously connected.

[0072] In one example, for LTM CSI reports, c can refer to a serving cell index for which the LTM CSI report configuration is configured. In this example, as previously mentioned, N cells can refer to the maximum number of serving cells (maxNrofServingCells) to which UE 208 can be simultaneously connected.

[0073] In another example, for LTM CSI reports, c can refer to a serving cell index on which the LTM CSI report is sent. In this example, N cells can refer to the maximum number of serving cells (maxNrofServingCells) to which UE 208 can be simultaneously connected.

[0074] In another example, for LTM CSI reports, predefined (e.g., constant) values c = 0, 1, 2, 3,... N can be used, and predefined (e.g., constant) values N cells = 0, 1, 2, 3,... N can be used. In some examples, the value c can be configured as a report configuration specific value (e.g., via RRC). In some examples, the same (configured RRC) value c can be used for all LTM CSI report configurations. In some examples, the value N cell can be configured as a report configuration specific value (e.g., via RRC). In some examples, the same (configured RRC) value N cell can be used for all LTM CSI report configurations.

[0075] In another example, for an LTM CSI report, c can refer to the lowest candidate cell identifier for the measurements that are configured for reporting. In this example, N cells can refer to the maximum number of candidate cells that are configured for the measurements and reporting associated with the LTM CSI report, or the maximum number of candidate cells that are configured for the measurements and reporting in all the configured LTM CSI reports for the current serving cell.

[0076] In another example, for an LTM CSI report, c can refer to the lowest candidate cell identifier for which measurements are reported in the report. In this example, N cells can refer to the maximum number of candidate cells that are configured for the measurements and reporting associated with the LTM CSI report, or the maximum number of candidate cells that are configured for the measurements and reporting in all the configured LTM CSI reports for the current serving cell.

[0077] In another example, for an LTM CSI report, c can refer to the lowest candidate cell identifier that is configured for reporting that the cell is not the current serving cell (e.g., the current primary serving cell) for the measurements. Also in this example, N cells can refer to the maximum number of candidate cells that are configured for the measurements and reporting associated with the LTM CSI report, or the maximum number of candidate cells that are configured for the measurements and reporting in all the configured LTM CSI reports for the current serving cell.

[0078] In another example, for an LTM CSI report, c can refer to the lowest candidate cell identifier that is configured for reporting that the cell is the serving cell (primary cell or secondary cell) for the measurements.

[0079] In yet another example, for an LTM CSI report, c can refer to the lowest candidate cell identifier value that is being reported in an LTM CSI report with valid (L1-RSRP) measurements. In one example, the reporting of valid RSRP measurements can include reporting the RSRP values in the valid value range for L1-RSRP reporting. Again, in this example, N cells can refer to the maximum number of candidate cells that are configured for the measurements and reporting associated with the LTM CSI report, or the maximum number of candidate cells that are configured for the measurements and reporting in all the configured LTM CSI reports for the current serving cell.

[0080] In any example, N cellsIt may refer to the maximum number of candidate cells configured for measurement and reporting associated with the LTM CSI report, or the maximum number of candidate cells configured for measurement and reporting in all configured LTM CSI reports for the current serving cell.

[0081] In another example, for the LTM CSI report, c may refer to the lowest candidate cell identifier for which at least one of the following exists: at least one TCI state has been activated, TA has been obtained using UE-based TA measurement, or PRACH transmission of a PDCCH command has been performed. And again, N cells It may refer to the maximum number of candidate cells configured for measurement and reporting associated with the LTM CSI report, or the maximum number of candidate cells configured for measurement and reporting in all configured LTM CSI reports for the current serving cell.

[0082] In another example, for the LTM CSI report, c may refer to the lowest candidate cell identifier for which at least one of the following exists: at least one TCI state has been activated, TA has been obtained using UE-based TA measurement, or PRACH transmission of a PDCCH command has been performed, and the lowest candidate cell identifier is being reported in a report having at least one valid (L1-RSRP) measurement. And again, N cells It may refer to the maximum number of candidate cells configured for measurement and reporting associated with the LTM CSI report, or the maximum number of candidate cells configured for measurement and reporting in all configured LTM CSI reports for the current serving cell.

[0083] The LTM CSI report is said to have a higher priority than the traditional CSI report. And if the Pri iCSI (y,k,c,s) value for the first LTM CSI report is lower than the Pri iCSI (y,k,c,s) value for the second LTM CSI report, then the first LTM CSI report is said to have a higher priority than the second LTM CSI report.

[0084] In one example, a UE may determine a Channel State Information (CSI) report to be reported, where the CSI report may be an LTM CSI report. The UE may calculate a priority value associated with the LTM CSI report based on one or more parameters. In some examples, the priority value associated with the LTM CSI report may be based on at least one parameter associated with a cell identifier (e.g., value c in a priority value calculation formula). In some examples, the priority value associated with the LTM CSI report may be based on at least one parameter associated with a cell (e.g., value c in a priority value calculation formula) on which the report is configured or sent. In some examples, the priority value associated with the LTM CSI report may be based on at least one parameter associated with multiple configured (candidate and / or serving) cells (e.g., value N in a priority value calculation formula). cells ). The UE may calculate priority values for one or more CSI reports that will be transmitted on overlapping resources (e.g., time and / or frequency). The UE may transmit one or more of the at least two CSI reports referred to as conflicts based on the priority values. In some examples, if reports cannot be multiplexed on the same reporting resource (time and / or frequency), the UE may discard one or more low-priority reports. In one example, a low priority value (based on a priority calculation formula) may indicate high priority.

[0085] In one example, the priority value associated with the LTM CSI report may be based on (e.g., value c in a priority value calculation formula may be based on) the lowest candidate cell identifier from all candidate cells configured for measurement and reporting (i.e., not only the reported cell, as there may be only a subset of cells selected for reporting).

[0086] In one example, the priority value associated with the LTM CSI report may be based on (e.g., value c in a priority value calculation formula may be based on) the lowest candidate cell identifier from all candidate cells being reported in the CSI report.

[0087] Figure 5FIG. is a flowchart showing the various steps in method 500 that can be implemented at UE 208 according to some examples. The method includes: determining that at least two channel state information (CSI) reports will be reported, as shown at block 502. The method includes: calculating a priority value associated with the at least two CSI reports, at least one of the priority values being calculated based on determining that at least one of the at least two CSI reports is a low layer triggered mobility (LTM) CSI report, as shown at block 504. The method includes: determining that the time occupancy of the physical channel scheduled to carry the at least two CSI reports overlaps at least partially on the carrier, and the at least two CSI reports are thus referred to as conflicting, as shown at block 506. And the method includes: based on the priority value, transmitting one or more of the at least two CSI reports referred to as conflicting, as shown at block 508.

[0088] In some examples, the LTM CSI report among the at least two CSI reports is associated with an LTM CSI report configuration. In some of these examples, the priority value is associated with the LTM CSI report, and at block 504, the priority value is calculated based on the serving cell index value for the serving cell where the LTM CSI report configuration is configured.

[0089] In some examples, the priority value includes the priority value associated with the LTM CSI report, and at block 504, the priority value is calculated based on the serving cell index value for the serving cell to which the LTM CSI report will be reported.

[0090] In some examples, the priority value includes the priority value associated with the LTM CSI report among the at least two LTM CSI reports, and at block 504, the priority value is calculated based on a CSI priority formula that includes at least one of the following terms: a serving cell index variable, or a maximum number of serving cells variable set to a predefined value.

[0091] In some examples, the LTM CSI report among the at least two CSI reports is associated with an LTM CSI report configuration for reporting measurements for one or more cells, the one or more cells including one or more candidate cells configured for LTM. In some of these examples, the priority value includes the priority value associated with the LTM CSI report, and at block 504, the priority value is calculated based on the candidate cell identifier for one of the one or more candidate cells.

[0092] In some examples, at block 504, a priority value associated with an LTM CSI report is calculated based on the lowest candidate cell identifier for one or more candidate cells.

[0093] In some examples, at block 504, a priority value associated with an LTM CSI report is calculated based on the lowest candidate cell identifier for one or more candidate cells that are not the current serving cell.

[0094] In some examples, at block 504, a priority value associated with an LTM CSI report is calculated based on the lowest candidate cell identifier for which measurements with valid measurement values are being reported in the LTM CSI report.

[0095] In some examples, at block 504, a priority value associated with an LTM CSI report is calculated based on the lowest cell identifier for one or more candidate cells for which at least one of the following exists: at least one transmission configuration indicator (TCI) state has been activated, timing advance (TA) has been obtained using UE-based TA measurements, or physical random access channel (PRACH) transmission of a physical downlink control channel (PDCCH) command has been performed.

[0096] In some examples, at block 504, a priority value associated with an LTM CSI report is calculated based on the lowest cell identifier for which measurements with valid measurement values are being reported and for which at least one of the following exists: at least one TCI state has been activated, TA has been obtained using UE-based TA measurements, or PRACH transmission of a PDCCH command has been performed.

[0097] In some examples, the priority value includes a priority value associated with the LTM CSI report among at least two CSI reports, and at block 504, the priority value associated with the LTM CSI report is calculated based on the maximum number of candidate cells configured for LTM.

[0098] In some examples, at block 504, a priority value associated with an LTM CSI report is calculated based on the maximum number of candidate cells configured for the measurements and reports associated with the LTM CSI report.

[0099] In some examples, at block 504, a priority value associated with an LTM CSI report is calculated based on the maximum number of candidate cells configured for measurement and reporting in all configured LTM CSI reports for the current primary serving cell.

[0100] According to example implementations of the present disclosure, the telecommunications system 100 or a PLMN 102 and its components (such as, UE 110, gNB 206, UE 208, CU 210, DU 212, S-DU 212A, and / or T-DU 212B) can be implemented in various ways. The components for implementing the system and its components can include hardware, firmware, software, or a combination thereof. In some examples, one or more devices can be configured to act as or otherwise implement the system and its components shown and described herein. In examples involving more than one device, the corresponding devices can be connected to each other or otherwise communicate with each other in a variety of different components, such as directly or indirectly via a wired network or a wireless network or the like.

[0101] According to some example implementations, regarding Figure 5 at least some of the methods 500 described can be performed by a device including components for performing functions corresponding to the steps of the method. Examples of suitable devices can include a user equipment, a user device, a user terminal, or the like.

[0102] Figure 6 An apparatus 600 is illustrated according to some example implementations of the present disclosure, where the components for performing various functions include hardware, either alone or under the guidance of one or more computer programs from a computer-readable storage medium or other memory (such as a computer memory). Generally, the apparatus of example implementations of the present disclosure can include, incorporate, or be embodied in one or more fixed or portable electronic devices. Examples of suitable electronic devices include a wearable computer, a mobile phone, a portable computer, a desktop computer, a workstation computer, a server (server computer), or the like. The apparatus can include one or more of each of the multiple components, such as, for example, processing circuitry 602 connected to a computer-readable storage medium or other memory 604.

[0103] The processing circuitry 602 can be composed of one or more processors alone or in combination with one or more computer-readable storage media. The processing circuitry generally is any part of computer hardware that is capable of processing information (such as, for example, data, computer programs, and / or other suitable electronic information). The processing circuitry consists of a set of electronic circuits, some of which can be encapsulated as integrated circuits or multiple interconnected integrated circuits (integrated circuits that are sometimes more commonly referred to as “chips”). The processing circuitry can be configured to execute a computer program that can be stored on the processing circuitry board or otherwise stored in the memory 604 (of the same or another device).

[0104] The processing circuitry 602 can be a plurality of processors, a multi-core processor, or some other type of processor, depending on the particular implementation. Additionally, a plurality of heterogeneous processor systems can be used to implement the processing circuitry, in which a main processor is present on a single chip together with one or more co-processors. As another illustrative example, the processing circuitry can be a symmetric multi-processor system that includes a plurality of processors of the same type. In yet another example, the processing circuitry can be embodied as or otherwise include one or more ASICs, FPGAs, or the like. Thus, while the processing circuitry can be capable of executing a computer program to perform one or more functions, the processing circuitry of the various examples can be capable of performing one or more functions without the aid of a computer program. In any instance, the processing circuitry can be appropriately programmed to perform the functions or operations implemented in accordance with the examples of the present disclosure.

[0105] The memory 604 generally is any part of computer hardware that is capable of storing information (such as, for example, data, computer programs, instructions 606 (such as computer-readable program code), and / or other suitable information) on a temporary basis and / or a permanent basis. The memory can include volatile and / or non-volatile memory and can be fixed or removable. Examples of suitable memories include recording media, random access memory (RAM), read-only memory (ROM), hard disk drives, flash memory, thumb drives, removable computer floppy disks, optical disks, or some combination thereof.

[0106] Memory 604 is a non-transitory device capable of storing information. An example of a suitable memory is a computer-readable storage medium, which can be distinguished from a computer-readable transmission medium capable of carrying information from one location to another. Examples of suitable computer-readable transmission media include electronic carrier signals, telecommunication signals, software distribution packages, or some combination thereof. As used herein, the term "non-transitory" is a limitation on the medium itself (i.e., tangible, not a signal) as contrasted with limitations on data storage persistence (e.g., RAM vs. ROM). The computer-readable media described herein generally refers to computer-readable storage media or computer-readable transmission media. A computer-readable medium is any entity or device capable of storing and carrying information (such as one or more computer programs or portions thereof).

[0107] In addition to memory 604 (e.g., a computer-readable storage medium), processing circuitry 602 may also be connected to one or more interfaces for displaying, transmitting, and / or receiving information. The interfaces may include a communication interface 608 and / or one or more user interfaces. The communication interface may be configured to transmit and / or receive information, such as transmitting information to and / or receiving information from other devices, networks, or the like. The communication interface may be configured to transmit and / or receive information via physical (wired) and / or wireless communication links. Examples of suitable communication interfaces include a network interface controller (NIC), a wireless NIC (WNIC), or the like.

[0108] The user interface may include a display 610 and / or one or more user input interfaces 612. The display may be configured to present or otherwise display information to a user, and suitable examples of the display include a liquid crystal display (LCD), a light-emitting diode (LED) display, an organic LED (OLED) display, an active matrix OLED (AMOLED), or the like. The user input interface may be wired or wireless and may be configured to receive information from a user into the device, such as for processing, storing, and / or displaying. Examples of suitable user input interfaces include a microphone, an image or video capture device, a keyboard or keypad, a joystick, a touch-sensitive surface (separate from or integrated into a touch screen), a biometric sensor, or the like. The user interface may also include one or more interfaces for communicating with peripheral devices (such as printers, scanners).

[0109] The execution of instructions 606 by processing circuitry 602, or the storage of instructions in memory 604, supports combinations of operations for implementing example implementations of the present disclosure. In this manner, apparatus 600 may include at least one processing circuitry and at least one memory coupled to the at least one processing circuitry, where the at least one processing circuitry is configured to execute instructions stored in the at least one memory. It should also be understood that one or more functions and combinations of functions may be implemented by a dedicated hardware-based computer system and / or processing circuitry that performs a specified function, or by a combination of dedicated hardware and program code instructions.

[0110] Some example implementations of the present disclosure may also be executed in the form of a computer process defined by one or more computer programs or portions thereof. Example implementations of the present disclosure may be executed by performing at least a portion of a computer program that includes instructions. The computer program may be in source code form, object code form, or some intermediate form. The computer program may be stored in a computer-readable medium that can be read by a computer, processing circuitry, or other suitable device. As indicated above, for example, the computer program may be stored in a memory (such as a computer-readable storage medium). Additionally or alternatively, for example, the computer program may be stored in a computer-readable transmission medium. The coding of software for executing example implementations of the present disclosure is entirely within the scope of those of ordinary skill in the art.

[0111] It can be understood that any suitable instructions may be loaded from a memory or a computer-readable medium (such as a computer-readable storage medium, a computer-readable transmission medium) onto a computer, processing circuitry, or other programmable device to produce a particular machine such that the particular machine becomes a component for implementing the functions specified herein. The instructions may also be stored in a computer-readable medium that can direct a computer, processing circuitry, or other programmable device to operate in a particular manner, thereby generating a particular machine or a particular manufactured article. In some examples, the instructions stored in the computer-readable medium may produce a manufactured article, where the manufactured article becomes a component for implementing the functions described herein. The instructions may be retrieved from the computer-readable medium and loaded into a computer, processing circuitry, or other programmable device to configure the computer, processing circuitry, or other programmable device to perform operations to be executed on or by the computer, processing circuitry, or other programmable device.

[0112] Instructions including program code instructions can be fetched, loaded, and executed sequentially such that one instruction is fetched, loaded, and executed each time. In some example implementations, fetching, loading, and / or execution can be performed in parallel such that multiple instructions are fetched, loaded, and / or executed together. Execution of the program code instructions can result in a computer-implemented process such that the instructions executed by a computer, processing circuitry, or other programmable device provide operations for implementing the functions described herein.

[0113] As explained above and repeated below, the present disclosure includes, but is not limited to, the following example implementations.

[0114] Clause 1. A device, comprising: at least one memory configured to store instructions; and at least one processing circuitry configured to access the at least one memory and execute the instructions to cause the device to at least: determine that at least two channel state information (CSI) reports are to be reported; calculate a priority value associated with the at least two CSI reports, at least one of the priority values being calculated based on determining that at least one of the at least two CSI reports is a low layer-triggered mobility (LTM) CSI report; determine that a time occupancy of a physical channel scheduled to carry the at least two CSI reports overlaps at least partially on a carrier, the at least two CSI reports thus being referred to as conflicting; and based on the priority value, transmit one or more of the at least two CSI reports referred to as conflicting.

[0115] Clause 2. The device according to Clause 1, wherein the LTM CSI report among the at least two CSI reports is associated with an LTM CSI report configuration, and wherein the priority value is associated with the LTM CSI report and the priority value is calculated based on a serving cell index value for a serving cell where the LTM CSI report configuration is configured.

[0116] Clause 3. The device according to Clause 1 or 2, wherein the priority value includes a priority value associated with the LTM CSI report and the priority value is calculated based on a serving cell index value for a serving cell to which the LTM CSI report is to be reported.

[0117] Clause 4. The device according to any one of Clauses 1 to 3, wherein the priority value includes a priority value associated with the LTM CSI report among the at least two LTM CSI reports and the priority value is calculated based on a CSI priority formula that includes at least one of the following terms: a serving cell index variable, or a serving cell maximum number variable set to a predefined value.

[0118] Clause 5. The apparatus according to any one of Clauses 1 to 4, wherein the LTM CSI reports in at least two CSI reports are associated with an LTM CSI report configuration for reporting measurements for one or more cells, the one or more cells including one or more candidate cells configured for LTM, and wherein the priority value includes a priority value associated with the LTM CSI report, and the priority value is calculated based on a candidate cell identifier for one of the one or more candidate cells.

[0119] Clause 6. The apparatus according to Clause 5, wherein the priority value associated with the LTM CSI report is calculated based on the lowest candidate cell identifier for the one or more candidate cells.

[0120] Clause 7. The apparatus according to Clause 6, wherein the priority value associated with the LTM CSI report is calculated based on the lowest candidate cell identifier for the one or more candidate cells that is not the current serving cell.

[0121] Clause 8. The apparatus according to any one of Clauses 5 to 7, wherein the priority value associated with the LTM CSI report is calculated based on the lowest candidate cell identifier for which a measurement with a valid measurement value is being reported in the LTM CSI report.

[0122] Clause 9. The apparatus according to any one of Clauses 5 to 8, wherein the priority value associated with the LTM CSI report is calculated based on the lowest cell identifier for one or more candidate cells for which at least one of the following exists: at least one transmission configuration indicator (TCI) state has been activated, timing advance (TA) based on a TA measurement of a user equipment (UE) has been obtained, or a physical random access channel (PRACH) transmission of a physical downlink control channel (PDCCH) command has been performed.

[0123] Clause 10. The apparatus according to Clause 9, wherein the priority value associated with the LTM CSI report is calculated based on the lowest cell identifier for which a measurement with a valid measurement value is being reported, and for which at least one of the following exists: at least one TCI state has been activated, TA based on a UE's TA measurement has been obtained, or a PRACH transmission of a PDCCH command has been performed.

[0124] Clause 11. The apparatus according to any one of Clauses 1 to 10, wherein the priority value includes a priority value associated with a long-term mobility (LTM) CSI report among at least two CSI reports, and the priority value associated with the LTM CSI report is calculated based on the maximum number of candidate cells configured for LTM.

[0125] Clause 12. The apparatus according to any one of Clauses 9 to 11, wherein the priority value associated with the LTM CSI report is calculated based on the maximum number of candidate cells configured for the measurement and reporting associated with the LTM CSI report.

[0126] Clause 13. The apparatus according to any one of Clauses 9 to 12, wherein the priority value associated with the LTM CSI report is calculated based on the maximum number of candidate cells configured for the measurement and reporting in all the configured LTM CSI reports of the current primary serving cell.

[0127] Clause 14. An apparatus, comprising: means for determining that at least two channel state information (CSI) reports will be reported; means for calculating a priority value associated with the at least two CSI reports, at least one of the priority values being calculated based on determining that at least one of the at least two CSI reports is a low-layer-triggered mobility (LTM) CSI report; means for determining that a time occupancy of a physical channel scheduled to carry the at least two CSI reports overlaps at least partially on a carrier, the at least two CSI reports thus being referred to as in conflict; and means for transmitting one or more of the at least two CSI reports referred to as in conflict based on the priority value.

[0128] Clause 15. The apparatus according to Clause 14, wherein the LTM CSI report among the at least two CSI reports is associated with an LTM CSI report configuration, and wherein the priority value is associated with the LTM CSI report, and the priority value is calculated based on a serving cell index value for a serving cell where the LTM CSI report configuration is configured.

[0129] Clause 16. The apparatus according to Clause 14 or 15, wherein the priority value includes a priority value associated with the LTM CSI report, and the priority value is calculated based on a serving cell index value for a serving cell to which the LTM CSI report will be reported.

[0130] Clause 17. The apparatus according to any one of Clauses 14 to 16, wherein the priority value includes a priority value associated with the LTM CSI report among at least two LTM CSI reports, and the priority value is calculated based on a CSI priority formula, the CSI priority formula including at least one of the following terms: a serving cell index variable, or a maximum number of serving cells variable set to a predefined value.

[0131] Clause 18. The apparatus according to any one of Clauses 14 to 17, wherein the LTM CSI report among at least two CSI reports is associated with an LTM CSI report configuration for reporting measurements for one or more cells, the one or more cells including one or more candidate cells configured for LTM, and wherein the priority value includes a priority value associated with the LTM CSI report, and the priority value is calculated based on a candidate cell identifier for one of the one or more candidate cells.

[0132] Clause 19. The apparatus according to Clause 18, wherein the priority value associated with the LTM CSI report is calculated based on the lowest candidate cell identifier for the one or more candidate cells.

[0133] Clause 20. The apparatus according to Clause 19, wherein the priority value associated with the LTM CSI report is calculated based on the lowest candidate cell identifier for the one or more candidate cells that is not the current serving cell.

[0134] Clause 21. The apparatus according to any one of Clauses 18 to 20, wherein the priority value associated with the LTM CSI report is calculated based on the lowest candidate cell identifier for which a measurement with a valid measurement value is being reported in the LTM CSI report.

[0135] Clause 22. The apparatus according to any one of Clauses 18 to 21, wherein the priority value associated with the LTM CSI report is calculated based on the lowest cell identifier for one or more candidate cells for which at least one of the following exists: at least one transmission configuration indicator (TCI) state has been activated, timing advance (TA) has been obtained using a TA measurement based on a user equipment (UE), or a physical random access channel (PRACH) transmission of a physical downlink control channel (PDCCH) command has been performed.

[0136] Clause 23. The apparatus according to Clause 22, wherein the priority value associated with the LTM CSI report is calculated based on the lowest cell identifier as follows. For the lowest cell identifier, measurements with valid measurement values are being reported, and for the lowest cell identifier, at least one of the following items exists: at least one TCI state has been activated, TA has been obtained using UE-based TA measurements, or PRACH transmission of a PDCCH command has been performed.

[0137] Clause 24. The apparatus according to any one of Clauses 14 to 23, wherein the priority value includes the priority value associated with the LTM CSI report in at least two CSI reports, and the priority value associated with the LTM CSI report is calculated based on the maximum number of candidate cells configured for LTM.

[0138] Clause 25. The apparatus according to any one of Clauses 22 to 24, wherein the priority value associated with the LTM CSI report is calculated based on the maximum number of candidate cells configured for the measurements and reports associated with the LTM CSI report.

[0139] Clause 26. The apparatus according to any one of Clauses 22 to 25, wherein the priority value associated with the LTM CSI report is calculated based on the maximum number of the following candidate cells, and the candidate cells are configured for the measurements and reports in all the configured LTM CSI reports of the current primary serving cell.

[0140] Clause 27. A method, comprising: determining that at least two channel state information (CSI) reports will be reported; calculating a priority value associated with the at least two CSI reports, wherein at least one of the priority values is calculated based on determining that at least one of the at least two CSI reports is a low layer triggered mobility (LTM) CSI report; determining that the time occupancy of the physical channel scheduled to carry the at least two CSI reports overlaps at least partially on a carrier, and the at least two CSI reports are thus called in conflict; and based on the priority value, transmitting one or more of the at least two CSI reports called in conflict.

[0141] Clause 28. The method according to Clause 27, wherein the LTM CSI report in the at least two CSI reports is associated with an LTM CSI report configuration, and wherein the priority value is associated with the LTM CSI report, and the priority value is calculated based on the serving cell index value of the following serving cell, and the LTM CSI report configuration is configured at the serving cell.

[0142] Clause 29. A method according to Clause 27 or 28, wherein the priority value includes a priority value associated with an LTM CSI report, and the priority value is calculated based on a serving cell index value for a serving cell to which the LTM CSI report is to be reported.

[0143] Clause 30. A method according to any one of Clauses 27 to 29, wherein the priority value includes a priority value associated with an LTM CSI report among at least two LTM CSI reports, and the priority value is calculated based on a CSI priority formula that includes at least one of the following terms: a serving cell index variable, or a maximum number variable of serving cells set to a predefined value.

[0144] Clause 31. A method according to any one of Clauses 27 to 30, wherein the LTM CSI report among at least two CSI reports is associated with an LTM CSI report configuration for reporting measurements for one or more cells, the one or more cells including one or more candidate cells configured for LTM, and wherein the priority value includes a priority value associated with the LTM CSI report, and the priority value is calculated based on a candidate cell identifier for one of the one or more candidate cells.

[0145] Clause 32. A method according to Clause 31, wherein the priority value associated with the LTM CSI report is calculated based on the lowest candidate cell identifier for the one or more candidate cells.

[0146] Clause 33. A method according to Clause 32, wherein the priority value associated with the LTM CSI report is calculated based on the lowest candidate cell identifier for the one or more candidate cells that is not the current serving cell.

[0147] Clause 34. A method according to any one of Clauses 31 to 33, wherein the priority value associated with the LTM CSI report is calculated based on the lowest candidate cell identifier for which a measurement with a valid measurement value is being reported in the LTM CSI report.

[0148] Clause 35. A method according to any one of Clauses 31 to 34, wherein the priority value associated with the LTM CSI report is calculated based on the lowest cell identifier for one or more candidate cells for which at least one of the following exists: at least one transmission configuration indicator (TCI) state has been activated, a timing advance (TA) has been obtained using a TA measurement based on a user equipment (UE), or a physical random access channel (PRACH) transmission of a physical downlink control channel (PDCCH) command has been performed.

[0149] Clause 36. The method according to Clause 35, wherein the priority value associated with the LTM CSI report is calculated based on the lowest cell identifier as follows. For the lowest cell identifier, the measurement with a valid measurement value is being reported, and for the lowest cell identifier, at least one of the following items exists: at least one TCI state has been activated, TA has been obtained using UE-based TA measurement, or PRACH transmission of a PDCCH command has been performed.

[0150] Clause 37. The method according to any one of Clauses 27 to 36, wherein the priority value includes the priority value associated with the LTM CSI report in at least two CSI reports, and the priority value associated with the LTM CSI report is calculated based on the maximum number of candidate cells configured for LTM.

[0151] Clause 38. The method according to any one of Clauses 35 to 37, wherein the priority value associated with the LTM CSI report is calculated based on the maximum number of candidate cells configured for the measurement and reporting associated with the LTM CSI report.

[0152] Clause 39. The method according to any one of Clauses 35 to 38, wherein the priority value associated with the LTM CSI report is calculated based on the maximum number of candidate cells configured for the measurement and reporting in all configured LTM CSI reports of the current primary serving cell.

[0153] Clause 40. A computer-readable storage medium, the computer-readable storage medium being non-transitory and having instructions stored therein, which, upon execution by at least one processing circuitry, cause the apparatus to at least: determine that at least two channel state information (CSI) reports will be reported; calculate a priority value associated with the at least two CSI reports, at least one of the priority values being calculated based on determining that at least one of the at least two CSI reports is a low-layer-triggered mobility (LTM) CSI report; determine that the time occupancy of the physical channel scheduled to carry the at least two CSI reports overlaps at least partially on the carrier, and the at least two CSI reports are thus called in conflict; and based on the priority value, transmit one or more of the at least two CSI reports called in conflict.

[0154] Clause 41. The computer-readable storage medium according to Clause 40, wherein at least two LTM CSI reports among the CSI reports are associated with an LTM CSI report configuration, and wherein a priority value is associated with the LTM CSI report, and the priority value is calculated based on a serving cell index value for a serving cell as follows, and the LTM CSI report configuration is configured at the serving cell.

[0155] Clause 42. The computer-readable storage medium according to Clause 40 or 41, wherein the priority value includes a priority value associated with the LTM CSI report, and the priority value is calculated based on a serving cell index value for a serving cell as follows, and the LTM CSI report is to be reported to the serving cell.

[0156] Clause 43. The computer-readable storage medium according to any one of Clauses 40 to 42, wherein the priority value includes a priority value associated with the LTM CSI report among at least two LTM CSI reports, and the priority value is calculated based on a CSI priority formula, and the CSI priority formula includes at least one of the following terms: a serving cell index variable, or a maximum number variable of serving cells set to a predefined value.

[0157] Clause 44. The computer-readable storage medium according to any one of Clauses 40 to 43, wherein at least two LTM CSI reports among the CSI reports are associated with an LTM CSI report configuration, and the LTM CSI report configuration is for reporting measurements for one or more cells, and the one or more cells include one or more candidate cells configured for LTM, and wherein the priority value includes a priority value associated with the LTM CSI report, and the priority value is calculated based on a candidate cell identifier for one of the one or more candidate cells.

[0158] Clause 45. The computer-readable storage medium according to Clause 44, wherein the priority value associated with the LTM CSI report is calculated based on the lowest candidate cell identifier for the one or more candidate cells.

[0159] Clause 46. The computer-readable storage medium according to Clause 45, wherein the priority value associated with the LTM CSI report is calculated based on the lowest candidate cell identifier for the one or more candidate cells that is not the current serving cell.

[0160] Clause 47. The computer-readable storage medium according to any one of Clauses 44 to 46, wherein the priority value associated with the LTM CSI report is calculated based on the lowest candidate cell identifier as follows, for which a measurement with a valid measurement value is being reported in the LTM CSI report.

[0161] Clause 48. A computer-readable storage medium according to any one of Clauses 44 to 47, wherein a priority value associated with an LTM CSI report is calculated based on a lowest cell identifier for one or more candidate cells for which there is at least one of the following: at least one transmission configuration indicator (TCI) state has been activated, timing advance (TA) usage has been obtained based on a TA measurement of a user equipment (UE), or a physical random access channel (PRACH) transmission of a physical downlink control channel (PDCCH) command has been performed.

[0162] Clause 49. A computer-readable storage medium according to Clause 48, wherein the priority value associated with the LTM CSI report is calculated based on a lowest cell identifier for which a measurement with a valid measurement value is being reported and for which there is at least one of the following: at least one TCI state has been activated, TA usage has been obtained based on a UE's TA measurement, or a PRACH transmission of a PDCCH command has been performed.

[0163] Clause 50. A computer-readable storage medium according to any one of Clauses 40 to 49, wherein the priority value includes a priority value associated with the LTM CSI report in at least two CSI reports, and the priority value associated with the LTM CSI report is calculated based on a maximum number of candidate cells configured for LTM.

[0164] Clause 51. A computer-readable storage medium according to any one of Clauses 48 to 50, wherein the priority value associated with the LTM CSI report is calculated based on a maximum number of candidate cells configured for measurements and reports associated with the LTM CSI report.

[0165] Clause 52. A computer-readable storage medium according to any one of Clauses 48 to 51, wherein the priority value associated with the LTM CSI report is calculated based on a maximum number of candidate cells configured for measurements and reports in all configured LTM CSI reports for a current primary serving cell.

[0166] Clause 53. An apparatus comprising components for performing a method according to any one of Clauses 27 to 39.

[0167] Clause 54. A computer-readable medium comprising computer-readable program code that, in response to execution by at least one processing circuitry, causes an apparatus to perform a method according to any one of Clauses 27 to 39.

[0168] Clause 55. A computer-readable storage medium comprising computer-readable program code which, responsive to execution by at least one processing circuitry, causes a device to perform the method of any one of Clauses 27 to 39.

[0169] Clause 56. A computer program comprising computer-readable program code which, responsive to execution by at least one processing circuitry, causes a device to perform the method of any one of Clauses 27 to 39.

[0170] Benefiting from the foregoing description and the teachings presented in the associated drawings, those skilled in the art to which this disclosure pertains will envision many modifications and other implementations of the disclosure set forth herein. Accordingly, it is to be understood that the disclosure is not limited to the particular implementations disclosed, and that modifications and other implementations are intended to be included within the scope of the appended claims. Moreover, although the foregoing description and the associated drawings describe example implementations in the context of certain example combinations of elements and / or functions, it is to be understood that different combinations of elements and / or functions can be provided by alternative implementations without departing from the scope of the appended claims. Herein, for example, combinations of elements and / or functions different from those explicitly described above are also contemplated, as may be set forth in some of the appended claims. Although specific terms are employed herein, they are used in a general and descriptive sense only and not for purposes of limitation.

Claims

1. A device for communication, comprising: at least one memory configured to store instructions; as well as at least one processing circuit system configured to access the at least one memory and execute the instructions to cause the apparatus to at least: determining at least two channel state information (CSI) reports to be reported; calculating priority values ​​associated with the at least two CSI reports, at least one of the priority values ​​being calculated based on determining that at least one CSI report of the at least two CSI reports is a low layer triggered mobility (LTM) CSI report; determining that the time occupancy of physical channels scheduled to carry the at least two CSI reports at least partially overlaps on a carrier, the at least two CSI reports being thereby said to be conflicting; as well as Based on the priority value, one or more CSI reports of the at least two CSI reports referred to as conflicting are sent.

2. The apparatus of claim 1 , wherein an LTM CSI report of the at least two CSI reports is associated with an LTM CSI report configuration, and The priority value is associated with the LTM CSI report, and the priority value is calculated based on a serving cell index value for a serving cell at which the LTM CSI report configuration is configured.

3. The apparatus of claim 1 , wherein the priority value comprises a priority value associated with the LTM CSI report, and the priority value is calculated based on a serving cell index value for a serving cell to which the LTM CSI report is to be reported.

4. The apparatus of claim 1 , wherein the priority value comprises a priority value associated with an LTM CSI report of the at least two LTM CSI reports, and the priority value is calculated based on a CSI priority formula, the CSI priority formula comprising at least one of: a serving cell index variable, or a maximum number of serving cells variable set to a predefined value.

5. The apparatus of claim 1 , wherein the LTM CSI report of the at least two CSI reports is associated with an LTM CSI report configuration, the LTM CSI report configuration being used to report measurements for one or more cells, the one or more cells comprising one or more candidate cells configured for LTM, and Wherein the priority value comprises a priority value associated with the LTM CSI report, and the priority value is calculated based on a candidate cell identifier for one of the one or more candidate cells.

6. The apparatus of claim 5, wherein the priority value associated with the LTM CSI report is calculated based on a lowest candidate cell identifier for the one or more candidate cells.

7. The apparatus of claim 6, wherein the priority value associated with the LTM CSI report is calculated based on the lowest candidate cell identifier for the one or more candidate cells that is not a current serving cell.

8. The apparatus of claim 5, wherein the priority value associated with the LTM CSI report is calculated based on a lowest candidate cell identifier for which measurements with valid measurement values ​​are being reported in the LTM CSI report.

9. The apparatus of claim 5, wherein the priority value associated with the LTM CSI report is calculated based on a lowest cell identifier for the one or more candidate cells for which at least one of the following items exists: at least one transmission configuration indicator (TCI) state has been activated, timing advance (TA) has been acquired using user equipment (UE)-based TA measurements, or a physical random access channel (PRACH) transmission of a physical downlink control channel (PDCCH) command has been performed.

10. The apparatus of claim 9, wherein the priority value associated with the LTM CSI report is calculated based on the lowest cell identifier for which measurements with valid measurement values ​​are being reported and for which at least one of the following exists: at least one TCI state has been activated, a TA has been acquired using UE-based TA measurements, or a PRACH transmission of a PDCCH command has been performed.

11. The apparatus of claim 1 , wherein the priority value comprises a priority value associated with an LTM CSI report of the at least two CSI reports, and the priority value associated with the LTM CSI report is calculated based on a maximum number of candidate cells configured for LTM.

12. The apparatus of claim 9, wherein the priority value associated with the LTM CSI report is calculated based on a maximum number of candidate cells configured for measurement and reporting associated with the LTM CSI report.

13. The apparatus of claim 9, wherein the priority value associated with the LTM CSI report is calculated based on a maximum number of candidate cells configured for measurement and reporting in all configured LTM CSI reports of a current primary serving cell.

14. A method performed by a user equipment, the method comprising: determining at least two channel state information (CSI) reports to be reported; calculating priority values ​​associated with the at least two CSI reports, at least one of the priority values ​​being calculated based on determining that at least one CSI report of the at least two CSI reports is a low layer triggered mobility (LTM) CSI report; determining that the time occupancy of physical channels scheduled to carry the at least two CSI reports at least partially overlaps on a carrier, the at least two CSI reports being thereby said to be conflicting; as well as Based on the priority value, one or more CSI reports of the at least two CSI reports referred to as conflicting are sent.

15. The method of claim 14, wherein the LTM CSI report of the at least two CSI reports is associated with an LTM CSI reporting configuration, and The priority value is associated with the LTM CSI report, and the priority value is calculated based on a serving cell index value for a serving cell at which the LTM CSI report configuration is configured.

16. The method of claim 14, wherein the priority value comprises a priority value associated with the LTM CSI report, and the priority value is calculated based on a serving cell index value for a serving cell to which the LTM CSI report is to be reported.

17. The method of claim 14, wherein the priority value comprises a priority value associated with an LTM CSI report of the at least two LTM CSI reports, and the priority value is calculated based on a CSI priority formula, the CSI priority formula comprising at least one of: a serving cell index variable, or a maximum number of serving cells variable set to a predefined value.

18. The method of claim 14, wherein the LTM CSI report of the at least two CSI reports is associated with an LTM CSI reporting configuration, the LTM CSI reporting configuration being used to report measurements for one or more cells, the one or more cells comprising one or more candidate cells configured for LTM, and Wherein the priority value comprises a priority value associated with the LTM CSI report, and the priority value is calculated based on a candidate cell identifier for one of the one or more candidate cells.

19. The method of claim 18, wherein the priority value associated with the LTM CSI report is calculated based on a lowest candidate cell identifier for the one or more candidate cells.

20. The method of claim 19, wherein the priority value associated with the LTM CSI report is calculated based on the lowest candidate cell identifier for the one or more candidate cells that is not a current serving cell.

21. The method of claim 18, wherein the priority value associated with the LTM CSI report is calculated based on a lowest candidate cell identifier for which measurements having valid measurement values ​​are being reported in the LTM CSI report.

22. The method of claim 18, wherein the priority value associated with the LTM CSI report is calculated based on a lowest cell identifier for one or more candidate cells for which at least one of the following items exists: at least one transmission configuration indicator (TCI) state has been activated, timing advance (TA) has been acquired using user equipment (UE)-based TA measurements, or a physical random access channel (PRACH) transmission of a physical downlink control channel (PDCCH) command has been performed.

23. The method of claim 22, wherein the priority value associated with the LTM CSI report is calculated based on the lowest cell identifier for which measurements with valid measurement values ​​are being reported and for which at least one of the following exists: at least one TCI state has been activated, a TA has been acquired using UE-based TA measurements, or a PRACH transmission of a PDCCH command has been performed.

24. The method of claim 14, wherein the priority value comprises a priority value associated with an LTM CSI report of the at least two CSI reports, and the priority value associated with the LTM CSI report is calculated based on a maximum number of candidate cells configured for LTM.

25. The method of claim 22, wherein the priority value associated with the LTM CSI report is calculated based on a maximum number of candidate cells configured for measurement and reporting associated with the LTM CSI report.

26. The method of claim 22, wherein the priority value associated with the LTM CSI report is calculated based on a maximum number of candidate cells configured for measurement and reporting in all configured LTM CSI reports of a current primary serving cell.

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