WO2025035284A1

WO2025035284A1 - Systems and methods for providing information applied for one or multiple points for serving cell changes

Info

Publication number: WO2025035284A1
Application number: PCT/CN2023/112624
Authority: WO
Inventors: Ling Yang; Bo Gao; Zhaohua Lu; Ke YAO; Xiaolong Guo
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2023-08-11
Filing date: 2023-08-11
Publication date: 2025-02-20
Anticipated expiration: 2026-02-11

Abstract

The present arrangement relates to systems, methods, and non-transitory computer-readable media for receiving, by a user device, information from a network node through a signaling; and performing, by the user device according to the received information, related operation for one or multiple points or point groups or point sets.

Description

SYSTEMS AND METHODS FOR PROVIDING INFORMATION APPLIED FOR ONE OR MULTIPLE POINTS FOR SERVING CELL CHANGES

TECHNICAL FIELD

The disclosure relates generally to wireless communications and, more particularly, to serving cell changes.

BACKGROUND

New radio (NR) systems may utilize handover procedures to provide coverage for a user equipment (UE) as the UE moves from a coverage area of one cell to another cell.

SUMMARY

The example arrangements disclosed herein are directed to solving the issues relating to one or more of the problems presented in the prior art, as well as providing additional features that will become readily apparent by reference to the following detailed description when taken in conjunction with the accompany drawings. In accordance with various arrangements, example systems, methods, devices and computer program products are disclosed herein. It is understood, however, that these arrangements are presented by way of example and are not limiting, and it will be apparent to those of ordinary skill in the art who read the present disclosure that various modifications to the disclosed arrangements can be made while remaining within the scope of this disclosure.

In some arrangements, a signal is received. A user device can receive information from a network node through the signal. The user device can perform, according to the received information, related operation for one or multiple points or point groups or point sets.

The above and other aspects and their implementations are described in greater detail in the drawings, the descriptions, and the claims.

BRIEF DESCRIPTION OF THE DRAWINGS

Various example arrangements of the present solution are described in detail below with reference to the following figures or drawings. The drawings are provided for purposes of illustration only and merely depict example arrangements of the present solution to facilitate the reader's understanding of the present solution. Therefore, the drawings should not be considered limiting of the breadth, scope, or applicability of the present solution. It should be noted that for clarity and ease of illustration, these drawings are not necessarily drawn to scale.

FIG. 1 illustrates an example cellular communication system, according to some arrangements.

FIG. 2 illustrates block diagrams of an example base station and an example user equipment device, according to some arrangements.

FIGS. 3A-3D are diagrams illustrating example communication procedures for serving cell changes, according to various arrangements.

FIGS. 4A-4E are diagrams illustrating example communication procedures for serving cell changes, according to various arrangements.

FIGS. 5A-5C are diagrams illustrating example wireless communications, according to various arrangements.

FIG. 6 is a diagram illustrating an example communication procedure, according to various arrangements.

FIG. 7 is a diagram illustrating an example communication procedure, according to various arrangements.

FIG. 8 is a diagram illustrating an example communication procedure, according to various arrangements.

FIG. 9 is a diagram illustrating an example communication procedure, according to various arrangements.

FIG. 10 is a diagram illustrating an example communication procedure, according to various arrangements.

FIG. 11 is a diagram illustrating an example communication procedure, according to some arrangements.

FIG. 12 is a flowchart diagram illustrating an example method for providing information applied for one or multiple points for serving cell changes, according to various arrangements.

DETAILED DESCRIPTION

Various example arrangements of the present solution are described below with reference to the accompanying figures to enable a person of ordinary skill in the art to make and use the present solution. As would be apparent to those of ordinary skill in the art, after reading the present disclosure, various changes or modifications to the examples described herein can be made without departing from the scope of the present solution. Thus, the present solution is not limited to the example arrangements and applications described and illustrated herein. Additionally, the specific order or hierarchy of steps in the methods disclosed herein are merely example approaches. Based upon design preferences, the specific order or hierarchy of steps of the disclosed methods or processes can be re-arranged while remaining within the scope of the present solution. Thus, those of ordinary skill in the art will understand that the methods and techniques disclosed herein present various steps or acts in a sample order, and the present solution is not limited to the specific order or hierarchy presented unless expressly stated otherwise.

In a wireless communications system, wireless communication devices may move from a first coverage area of a first cell to a second coverage area of a second cell, triggering a serving cell switching procedure. In some wireless communication systems, the serving cell switching procedure may be triggered by layer 3 (L3) measurements and done by radio resource control (RRC) signaling triggered reconfiguration with synchronization for change of primary cell (PCell) and primary/secondary cell (PSCell) , as well as release add for secondary cells (SCells) when applicable. The serving cell switching procedure may involve a complete layer 2 (L2) and layer 1 (L1) reset, which may result in longer latency, larger overhead, and longer interruption time than beam switch mobility. The arrangement disclosed herein provides systems and methods that support mobility enhancements. For example, wireless communications system may enable a serving cell change via L1/L2 signaling, which may result in reduced latency, overhead, and interruption time. To do so, the arrangement disclosed herein may provide information applied for a list or a group for a mobility or handover scenario.

In some examples, enhancements to mobility (e.g., handover procedures, procedures for moving from a first cell to a second cell) are discussed. For example, a wireless communications system may enable a serving cell change via L1/L2 signaling with low latency, overhead, and interruption time. In order to support cell change, enhancements may include enhancement on information applied for a list or group for mobility or handover scenario. For example, the information can be at least one of beam indication (or one or a pair of transmission configuration indicator (TCI) state index) , timing advance (TA) , an identification, an indication to trigger and/or indicate tracking reference signal (TRS) tracking, an indication to trigger and/or indicate channel state information (CSI) acquisition, an indication to trigger TA acquisition and/or indicate TA resource, an indication to trigger sounding reference signal (SRS) transmission and/or indicate SRS resource, an indication to trigger downlink (DL) synchronization, an indication to trigger and/or indicate resource position, component carrier (CC) or cell index, an identification or indication of a set of CC or cell or CC or cell group or list, or an indication of activating or deactivating CC or cell.

Carrier aggregation (CA) can be defined as aggregation of one or more CCs, in order to support wider transmission bandwidths. Where the CCs can be adjacent or nonadjacent to each other. In some cases, CA can be described using a cell. For example, if a device has CA capability, the device can receive from multiple cells or transmit to multiple cells. One of multiple cells can be regarded as the PCell and other cells can be called SCells. The device can be configured with, indicate, or report a capability to support a maximum number of CCs or cells.

In some examples, assuming that there are N units, labeled as unit #1, unit #2, unit #3, …, unit #N, where each unit includes one or more elements (e.g., M) . The term unit can be or is replaced with CC group, CA, CC set, a set of CC, CC pool, Cell group, Cell set, a set of Cell, Cell pool, Cell, transmission reception point (TRP) , a set of TRP, TRP set, node point, a set of node point, or node point set, or other name/term. The term element can be or is replaced with Cell, TRP, node point, other name/term. In some examples, the cell list may be labeled as Cell #1, Cell #2, Cell #3, …, Cell #N. In some examples, Cells of this list can be divided into different Cell group, such as Cell group #1, Cell group #2, Cell group #3, …, Cell group #K. Where each Cell group include one or more Cells (e.g., S) .

Table 1

In some examples, the above assumption can be described as: assumed that CC group #1, CC group #2, CC group #3, …, CC group #N, where, CC group #1 includes CC #1_1, CC #1_2, …, CC #1_M₁; CC group #2 includes CC #2_1, CC #2_2, …, CC #2_M₂; …; CC group #N includes CC #N_1, CC #N_2, …, CC #N_M_N. as shown in Table 2.

Table 2

In some examples, the above assumption can be described as: assumed that Cell group #1, Cell group #2, Cell group #3, …, Cell group #N, where, Cell group #1 includes Cell #1_1, Cell #1_2, …, Cell #1_M₁; Cell group #2 includes Cell #2_1, Cell #2_2, …, Cell #2_M₂; …; Cell group #N includes Cell #N_1, Cell #N_2, …, Cell #N_M_N. as shown in Table 2. In CA scenario, a set of CC can be composed of one PCell and one or more SCell. As shown in Table 3 and Table 4.

Table 3

Table 4

In some cases, cell switch command can be used to indicate or convey information of target point to the device. In some examples, target point can be a target cell, a target CC, a target cell group, a target CC group. In some examples, information mentioned above can be TCI state indication, TCI state set, TCI state group, or TCI state set. Optionally, TCI state indication can be one TCI state index, or a pair TCI state index where one TCI state for DL and one TCI state for UL, or a TCI state index list including one or more TCI states. Each of these TCI state can be applied for cell or CC or TRP, or panel, or a set of CC or cell, or CC or cell group. In some examples, cell switch command can be transmitted or conveyed by a signaling. The signaling can be at least one of medium access control control element (MAC CE) signaling, downlink control indicator (DCI) signaling, RRC signaling, or physical uplink control channel (PUCCH) , or physical uplink shared channel (PUSCH) . Optionally, PUSCH can be dynamically scheduled PUSCH, or configured grant PUSCH.

FIG. 1 illustrates an example wireless communication system 100 in which techniques disclosed herein may be implemented, in accordance with an implementation of the present disclosure. In the following discussion, the wireless communication system 100 can implement any wireless network, such as a cellular network or a narrowband Internet of things (NB-IoT) network, and is herein referred to as system 100. Such an example system 100 includes a BS 102 and a UE 104 that can communicate with each other via a communication link 110 (e.g., a wireless communication channel) , and a cluster of cells 126, 130, 132, 134, 136, 138 and 140 overlaying a geographical area 101. In FIG. 1, the BS 102 and UE 104 are contained within a respective geographic boundary of cell 126. Each of the other cells 130, 132, 134, 136, 138 and 140 may include at least one BS operating at its allocated bandwidth to provide adequate radio coverage to its intended users.

For example, the BS 102 may operate at an allocated channel transmission bandwidth to provide adequate coverage to the UE 104. The BS 102 and the UE 104 may communicate via a downlink radio frame 118, and an uplink radio frame 124 respectively. Each radio frame 118/124 may be further divided into sub-frames 120/127 which may include data symbols 122/128. In the present disclosure, the BS 102 and UE 104 are described herein as non-limiting examples of “communication nodes, ” generally, which can practice the methods disclosed herein. Such communication nodes may be capable of wireless and/or wired communications, in accordance with various implementations of the present solution.

In some implementations, the wireless communication system 100 may support MIMO communication. For example, MIMO is a key technology in new radio (NR) systems. MIMO may be functional in both frequency division duplex (FDD) and time division duplex (TDD) systems, among others. MIMO technologies may utilize reporting mechanisms such as CSI to support communication. CSI reports may include various types, parts, groups, and fields. The techniques described herein may provide enhancements to various aspects of the CSI report and reporting process. For example, a wireless communication device may receive, by a wireless communication device from a network, multiple reference signals and a configuration parameter. The wireless communication device may determine a CSI report based on the multiple reference signals and the configuration parameter, where the CSI report comprises CSI part 1 and CSI part 2. The wireless communication device may report, to the network, the CSI report. In some cases, the reporting process may include one or more of the following: the configuration parameter may be configured for enabling two or more CQIs in the CSI report, the reference signals are aperiodic or semi-persistent, and each of a CSI window length, DD basic unit size, an offset between two CSI reference signal (CSI-RS) resources, and a length of DD basic vector is larger than or equal to a threshold. Additionally, or alternatively, the wireless communication device may send, to the network, a User Equipment (UE) capability report indicating that the wireless communication device supports a number of CQI reports, where the number is a positive integer. The wireless communications system may implement codebooks to further support CSI reporting, among other various uses.

FIG. 2 illustrates a block diagram of an example wireless communication system 200 for transmitting and receiving wireless communication signals, e.g., OFDM/OFDMA signals, in accordance with some implementations of the present solution. The system 200 may include components and elements configured to support known or conventional operating features that need not be described in detail herein. In one illustrative implementation, system 200 can be used to communicate (e.g., transmit and receive) data symbols in a wireless communication environment such as the wireless communication environment 100 of FIG. 1, as described above.

System 200 generally includes a BS 202 and a UE 204. The BS 202 includes a Base Station (BS) transceiver module 210, a BS antenna 212, a BS processor module 214, a BS memory module 216, and a network communication module 218, each module being coupled and interconnected with one another as necessary via a data communication bus 220. The UE 204 includes a UE transceiver module 230, a UE antenna 232, a UE memory module 234, and a UE processor module 236, each module being coupled and interconnected with one another as necessary via a data communication bus 240. The BS 202 communicates with the UE 204 via a communication channel 250, which can be any wireless channel or other medium suitable for transmission of data as described herein.

The system 200 may further include any number of modules other than the modules shown in FIG. 2. Those skilled in the art will understand that the various illustrative blocks, modules, circuits, and processing logic described in connection with the implementations disclosed herein may be implemented in hardware, computer-readable software, firmware, or any practical combination thereof. To clearly illustrate this interchangeability and compatibility of hardware, firmware, and software, various illustrative components, blocks, modules, circuits, and steps are described generally in terms of their functionality. Whether such functionality is implemented as hardware, firmware, or software can depend upon the particular application and design constraints imposed on the overall system. Those familiar with the concepts described herein may implement such functionality in a suitable manner for each particular application, but such implementation decisions should not be interpreted as limiting the scope of the present disclosure.

In accordance with some implementations, the UE transceiver 230 may be referred to herein as an uplink transceiver 230 that includes a Radio Frequency (RF) transmitter and a RF receiver each including circuitry that is coupled to the antenna 232. A duplex switch (not shown) may alternatively couple the uplink transmitter or receiver to the uplink antenna in time duplex fashion. Similarly, in accordance with some implementations, the BS transceiver 210 may be referred to herein as a "downlink" transceiver 210 that includes a RF transmitter and a RF receiver each including circuity that is coupled to the antenna 212. A downlink duplex switch may alternatively couple the downlink transmitter or receiver to the downlink antenna 212 in time duplex fashion. The operations of the two transceiver modules 210 and 230 can be coordinated in time such that the uplink receiver circuitry is coupled to the uplink antenna 232 for reception of transmissions over the wireless transmission link 250 at the same time that the downlink transmitter is coupled to the downlink antenna 212. In some implementations, there is close time synchronization with a minimal guard time between changes in duplex direction.

The UE transceiver 230 and the BS transceiver 210 are configured to communicate via the wireless data communication link 250, and cooperate with a suitably configured RF antenna arrangement 212/232 that can support a particular wireless communication protocol and modulation scheme. In some illustrative implementations, the UE transceiver 210 and the BS transceiver 210 are configured to support industry standards such as the Long-Term Evolution (LTE) and emerging 5G and 6G standards, and the like. It is understood, however, that the present disclosure is not necessarily limited in application to a particular standard and associated protocols. Rather, the UE transceiver 230 and the BS transceiver 210 may be configured to support alternate, or additional, wireless data communication protocols, including future standards or variations thereof.

In accordance with various implementations, the BS 202 may be an evolved node B (eNB) , a serving eNB, a target eNB, a femto station, or a pico station, for example. In some implementations, the UE 204 can be various types of user devices such as a mobile phone, a smart phone, a Personal Digital Assistant (PDA) , tablet, laptop computer, wearable computing device, etc. The processor modules 214 and 236 may be implemented, or realized, with a general purpose processor a content addressable memory, a digital signal processor an application specific integrated circuit, a field programmable gate array, any suitable programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof, designed to perform the functions described herein. In this manner, a processor may be realized as a microprocessor a controller, a microcontroller, a state machine, or the like. A processor may also be implemented as a combination of computing devices, e.g., a combination of a digital signal processor and a microprocessor a plurality of microprocessors, one or more microprocessors in conjunction with a digital signal processor core, or any other such configuration.

Furthermore, the methods described in connection with the implementations disclosed herein may be implemented directly in hardware, in firmware, in a software module executed by processor modules 214 and 236, respectively, or in any practical combination thereof. The memory modules 216 and 234 may be realized as RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. In this regard, memory modules 216 and 234 may be coupled to the processor modules 210 and 230, respectively, such that the processors modules 210 and 230 can read information from, and write information to, memory modules 216 and 234, respectively. The memory modules 216 and 234 may also be integrated into their respective processor modules 210 and 230. In some implementations, the memory modules 216 and 234 may each include a cache memory for storing temporary variables or other intermediate information during execution of instructions to be executed by processor modules 210 and 230, respectively. Memory modules 216 and 234 may also each include non-volatile memory for storing instructions to be executed by the processor modules 210 and 230, respectively.

The network communication module 218 generally represents the hardware, software, firmware, processing logic, and/or other components of the BS 202 that enable bi-directional communication between BS transceiver 210 and other network components and communication nodes configured to communication with the BS 202. For example, network communication module 218 may be configured to support internet or WiMAX traffic. In a typical deployment, without limitation, network communication module 218 provides an 802.3 Ethernet interface such that BS transceiver 210 can communicate with a conventional Ethernet based computer network. In this manner, the network communication module 218 may include a physical interface for connection to the computer network (e.g., Mobile Switching Center (MSC) ) . The terms “configured for” “configured to” and conjugations thereof, as used herein with respect to a specified operation or function, refer to a device, component, circuit, structure, machine, signal, etc., that is physically constructed, programmed, formatted and/or arranged to perform the specified operation or function.

FIGS. 3A-D are diagrams illustrating example communication procedures 300, 301, 303, and 305 associated with serving cell changes, according to various arrangements. The communication procedures 300, 301, 303, and 305 may include methods associated with TCI states for a cell group or CC group or a set of cell group or a set of CC or for CA scenarios. For example, the communication procedures 300, 301, 303, and 305 may include a cell switch command 302, a cell group 304, and cells 306, 308, and 310 of the cell group 304. The communication procedures 303 and 305 may further include a TCI state 312.

In some cases, a cell group index or CC group index or an identification to indicate a set of cell or CC is included in the cell switch command 302, comprising at least one of the following.

If TCI state indication or index is included in the cell switch command 302, then at least one of a first method or a second method can be applied. The first method may include the TCI state corresponding to TCI state index being applied for the cell group corresponding to cell group index; the set of cell corresponding to the indication of a set of cell; the CC group corresponding to CC group index; the set of CC corresponding to the indication of a set of CC; for CA scenario, the CC or cell group or a set of CC or cell can be replaced with CA group or a set of cell with CA operation; or the CC or cell group or a set of CC or cell can be replaced with the TRP or Panel group or a set of TRP or Panel.

The second method may include the TCI state corresponding to TCI state index being applied for the CC or cell associated with indicated TCI state; the CC or cell list or set or group associated with indicated TCI state; the CC or cell associated with indicated TCI state if the CC or cell associated with indicated TCI state is included in cell group corresponding to cell group index, or a set of cell corresponding to the indication of a set of cell, or CC group corresponding to CC group index, or a set of CC corresponding to the indication of a set of CC, or a set of cell with CA operation, or TRP or Panel group or a set of TRP or Panel; the CC or cell list or set or group or CCs or cells associated with indicated TCI state if the CC or cell list or set or group associated with indicated TCI state are included in cell group corresponding to cell group index, or a set of cell corresponding to the indication of a set of cell, or CC group corresponding to CC group index, or a set of CC corresponding to the indication of a set of CC, or a set of cell with CA operation, or TRP or Panel group or a set of TRP or Panel; or cell (s) or CC (s) or all cells or CCs within cell group corresponding to cell group index, or a set of cell corresponding to the indication of a set of cell, or CC group corresponding to CC group index, or a set of CC corresponding to the indication of a set of CC, or a set of cell with CA operation. Optionally, the second method can also be applied for TRP or panel group or a set of TRP or panel case. Optionally, whether the second method can be applied for cell or CC (s) within cell group corresponding to cell group index, or a set of cell corresponding to the indication of a set of cell, or CC group corresponding to CC group index, or a set of CC corresponding to the indication of a set of CC, or a set of cell with CA operation depends on an indication. The indication can be indicated or configured or conveyed by at least one of RRC, or MAC CE or DCI signaling, or default or UE capability.

In some examples, TCI state comprises at least one of RS index, Cell index (or CC index) , bandwidth part (BWP) index or physical cell identification or an identification to indicate a cell or CC or TRP or panel. In some examples, for the case that a TCI state indicated in cell switch command is associated with one cell or CC within cell or CC group or a set of cell or CC, at least the TCI state can be applied for the cell or CC associated with the TCI state within cell or CC group or a set of cell or CC. In some example, for the case that a TCI state list indicated in cell switch command, at least one of TCI state list is associated with cell or CC within cell or CC group or a set of cell or CC, at least TCI state can be applied for cell or CC associated with corresponded TCI state within TCI state list.

In some examples, if TCI state is absent for a cell or a CC or a BWP of cell or CC, at least one of the examples shown in FIGS. 3A-D can be considered. For example, in FIG. 3A, the device can apply the TCI state from or configured or indicated or associated with a cell or CC. Or TCI state from or configured or indicated or associated with a cell or CC can be applied for cell or CC in which TCI state is absent. Optionally, the cell or CC in which TCI state is present or configured or indicated can be regarded as a reference cell or CC. That is to say, TCI state for a cell or CC or reference CC or cell can be applied for cell (s) or CC (s) or all cells or CCs within cell or CC group, or cell or CC list, or a set of cell or CC.

As shown in FIG. 3A, cell switch command 302 includes at least one of cell group #1 304 (or CC group #1) , TCI state #3 or etc. Cell group #1 304 includes cell #1 (or CC#1) 306, cell #2 (or CC#2) 308, cell #3 (or CC#3) 310. TCI state #3 is associated with or configured for the cell #1 (or CC #1) 306. For cell #2 (or CC#2) 308, or cell #3 (or CC#3) 310, TCI state is absent or configured or indicated. According to the method corresponding to FIG. 3A, cell #1 (or CC #1) 306 can be regarded as a reference cell (or CC) . TCI state #3 associated with or configured or indicated for cell #1 (or CC #1) 306 can be applied for at least one of cell #2 (or CC #2) 308 or cell #3 (or CC #3) 310. In some examples, whether the TCI state from a cell (or CC) or a reference cell (or CC) can be applied for other cells (or CC) or all cells (or CC) within cell or CC group, or cell or CC list, or a set of cell or CC can be determined by an indication. The indication can be configured or indicated or conveyed or determined by at least one of RRC signaling, MAC CE signaling, DCI signaling, system information, UE capability or default.

In FIG. 3B, the device can apply the TCI state corresponding to the same TCI state index as the TCI state from or configured or indicated or associated with a cell or CC. Or the TCI state corresponding to the same TCI state index as TCI state from or configured or indicated or associated with a cell or CC is applied for cell or CC associated with or configured with the TCI state. Optionally, the cell or CC in which TCI state is present or configured or indicated can be regarded as a reference cell or CC. That is to say, TCI state corresponding to same TCI state index as TCI state for a cell or CC or reference CC or cell is applied for cell or CC associated with or configured with the TCI state within cell or CC group, or cell or CC list, or a set of cell or CC. Additionally, or alternatively, the method of FIG. 3B can be used for the case a cell or CC index or a cell group index or a CC group index or index of a set of CC or cell included in TCI state indicated in cell switch command is for TCI state.

As shown in FIG. 3B, cell switch command 302 includes at least one of cell group #1 (or CC group #1) 304, TCI state #3 or etc. Cell group #1 304 includes cell #1 (or CC#1) 306, cell #2 (or CC#2) 308, cell #3 (or CC#3) 310. TCI state #3 is associated with or configured for the cell #1 (or CC #1) 306. For cell #2 (or CC#2) 308, or cell #3 (or CC#3) 310, TCI state is absent or not configured or indicated in cell switch command. According to the method corresponding to FIG. 3B, cell #1 (or CC #1) 306 can be regarded as a reference cell (or CC) . TCI state corresponding to same TCI state index as TCI state #3 associated with or configured or indicated for cell #1 (or CC #1) 306 is applied for cell #2 (or CC #2) 308. TCI state corresponding to same TCI state index as TCI state #3 associated with or configured or indicated for cell #1 (or CC #1) 306 is applied for cell #3 (or CC #3) 310. That is to say, TCI state #3 associated with or configured with cell #2 (or CC #2) 308 is applied for cell #2 (or CC #2) 308. TCI state #3 associated with or configured with cell #3 (or CC #3) 310 is applied for cell #3 (or CC #3) 310. In some example, whether the same TCI state index as TCI state from or configured or indicated or associated with a cell or CC can be applied for cell or CC associated with or configured with the TCI state within cell or CC group, or cell or CC list, or a set of cell or CC can be determined by an indication. The indication can be configured or indicated or conveyed or determined by at least one of RRC signaling, MAC CE signaling, DCI signaling, system information, UE capability or default.

For FIG. 3C, the device can apply TCI state from or configured or indicated or associated with a cell or CC or indicated in cell switch command. Or TCI state from or configured or indicated or associated with a cell or CC or indicated in cell switch command can be applied for cell or CC in which TCI state is absent. For the alternative, TCI state includes a cell or CC index or a cell group index or a CC group index or index of a set of CC or cell. Optionally, a cell or CC index or a cell group index or a CC group index or index of a set of CC or cell is for this TCI state. Based on this, the device can apply TCI state for CC or Cell indicated in TCI state. Where CC or Cell indicated in TCI state can be regarded as a reference CC or Cell. Optionally, The TCI state can be applied for cell (s) or CC (s) or all cells or CCs within cell or CC group, or cell or CC list, or a set of cell or CC.

As shown in FIG. 3C, cell switch command 302 includes at least one of cell group #1 (or CC group #1) 304, TCI state #3 or etc. Cell group #1 304 includes cell #1 (or CC#1) 306, cell #2 (or CC#2) 308, cell #3 (or CC#3) 310. TCI state #3 312 includes a cell index such as the cell #1 (or CC #1) 306. For cell #2 (or CC#2) 308, or cell #3 (or CC#3) 310, TCI state is absent or not configured or indicated in cell switch command. According to the method corresponding to FIG. 3C, cell #1 (or CC #1) 306 can be regarded as a reference cell (or CC) . TCI state #3 312 that includes identification to indicate cell #1 (or CC #1) 306 can be applied for at least one of cell #2 (or CC #2) 308 or cell #3 (or CC #3) 310. In some example, whether the TCI state that includes identification to indicate cell (or CC) index or a reference cell (or CC) can be applied for other cells (or CC) or all cells (or CC) within cell or CC group, or cell or CC list, or a set of cell or CC can be determined by an indication. The indication can be configured or indicated or conveyed or determined by at least one of RRC signaling, MAC CE signaling, DCI signaling, system information, UE capability or default.

For FIG. 3D, the difference from the example shown in FIG. 3C is that a cell or CC index or a cell group index or a CC group index or index of a set of CC or cell included in TCI state indicated in cell switch command 302 is a reference signal (RS) index included or indicated in TCI state. TCI state indicated in cell switch command is applied for the cell or CC included in TCI state. For the CC or cell in which TCI state or RS index is absent or not configured or indicated, TCI state associated with the same RS index or the QCI assumption corresponding to same RS index as that included or indicated in TCI state in cell switch command is applied for CC or Cell. Wherein same RS index is configured or associated with CC or cell in which TCI state or RS index is absent or not configured or indicated in cell switch command.

As shown in FIG. 3D, cell switch command 302 includes at least one of cell group #1 (or CC group #1) 304, TCI state #3 312, etc. Cell group #1 304 includes cell #1 (or CC#1) 306, cell #2 (or CC#2) 308, cell #3 (or CC#3) 310. TCI state #3 312 includes at least one of RS index and a cell index such as the cell #1 (or CC #1) 306, wherein configured cell #1 (or CC #1) 306 is associated with RS index indicated or included in TCI state #3 312. For cell #2 (or CC#2) 308, or cell #3 (or CC#3) 310, TCI state is absent or not configured or indicated in cell switch command. According to the method corresponding to FIG. 3D, cell #1 (or CC #1) 306 can be regarded as a reference cell (or CC) . TCI state associated with the same RS index in cell #2 (or CC #2) 308 as that included or indicated in TCI state in cell switch command is applied for cell #2 (or CC #2) 308, where the same is true for cell #3 (or CC #3) 310.

In some example, whether TCI state associated with the same RS index or the quality of service class identifier (QCI) assumption corresponding to same RS index as that included or indicated in TCI state in cell switch command can be applied for other cells (or CC) or all cells (or CC) within cell or CC group, or cell or CC list, or a set of cell or CC can be determined by an indication. The indication can be configured or indicated or conveyed or determined by at least one of RRC signaling, MAC CE signaling, DCI signaling, system information, UE capability or default.

If a list or set of TCI state indication or index is included in cell switch command 302, at least one of the following method can be considered: Case-1: if TCI state of TCI state list is associated with or configured for a cell or CC, or a set of cell or CC, or cell or CC group, TCI state can be used for the cell or CC , or a set of cell or CC, or cell or CC group. In some examples, the cell or CC, or a set of cell or CC, or cell or CC group is included in cell or CC group, cell or CC list indicated in cell switch command. Case-2: each of indicated TCI state list can be applied for cell or CC associated with corresponding to indicated TCI state.

FIGS. 4A-E are diagrams illustrating example communication procedures 400, 401, 403, 405, and 407 associated with serving cell changes, according to various arrangements. The communication procedures 400, 401, 403, 405, and 407 may include methods associated with TCI state for a cell group or CC group or a set of cell group or a set of CC or for CA scenarios. For example, the communication procedures 400, 401, 403, 405, and 407 may include a cell switch command 402, a cell group 404, and cells 406, 408, and 410 of the cell group 404. The communication procedures 403, 405, and 407 may further include a TCI state 412.

In some cases, the cell switch command 402 conveyed or carried by MAC CE signaling or DCI signaling includes a cell index (or CC index or ID) , or cell index (or CC index or ID) is indicated by Cell switch command conveyed or carried by MAC CE signaling or DCI signaling. In some examples, a TCI state index for indicated or associated with cell index (or CC index or ID) is included in cell switch command conveyed or carried by MAC CE signaling or DCI signaling, or Cell switch command conveyed or carried by MAC CE signaling or DCI signaling includes a TCI state index for indicated or associated with cell index (or CC index or ID) . In some examples, if a cell or CC group case, or a set of cell or CC group case, or CA scenario, then at least one of the examples shown in FIGS. 4A-E can be considered.

In a first example of FIG. 4A, a TCI state is applied for cell or CC group, or a set of cell or CC group associated with the indicated a cell index (or CC index or ID) , or in which includes indicated cell index (or CC index or ID) . In a second example, a TCI state indicated in cell switch command 402 is applied for a cell or CC 406 associated with indicated TCI state. In some examples, the TCI state associated with the indicated cell index (or CC index or ID) 406 can be applied for cell (s) or CC (s) in which TCI state is absent or not indicated in cell switch command 402. In some examples, whether the TCI state indicated in cell switch command 402 can be applied for other cell (s) (or CC (s) ) or all cells (or all CCs) 406-410 within cell or CC group 404, or cell or CC list 404, or a set of cell or CC 404 can be determined by an indication. The indication can be configured or indicated or conveyed or determined by at least one of RRC signaling, MAC CE signaling, DCI signaling, system information, UE capability or default.

In the example of FIG. 4B, a TCI state indicated in cell switch command 402 is applied for a cell or CC 406 associated with indicated TCI state. In some examples, the TCI state corresponding to the same TCI state index as indicated in cell switch command 402 can be applied for cell (s) or CC (s) in which TCI state is absent or not indicated in cell switch command 402.

In the examples of FIGS. 4C-D, a TCI state 412 indicated in cell switch command 402 is applied for a cell or CC 406 associated with indicated TCI state 412. In some examples, TCI state 412 associated with RS index indicated in TCI state 412 included in cell switch command 402 can be applied for cell (s) or CC (s) in which TCI state 412 is absent or not indicated in cell switch command 402, as shown in FIG. 4C. Or TCI state 412 associated with RS index that is same or quasi-collocated (QCLed) with RS index indicated in TCI state 412 included in cell switch command 402 can be applied for cell (s) or CC (s) in which TCI state 412 is absent or not indicated in cell switch command 402, as shown in FIG. 4D. Or RS index that is same or QCLed with RS index indicated in TCI state 412 included in cell switch command 402 can be applied for cell (s) or CC (s) in which TCI state 412 is absent or not indicated in cell switch command 402, as shown in FIG. 4E.

Some embodiments may relate to, methods or rules for a scenario in which there are multiple cell groups or CC groups or cell sets or CC sets, or for the case that the TCI state 412 indicated in cell switch command 402 cannot be applied for one or multiple CCs or cells or CC sets or cell sets. For example, if the TCI state 412 indicated in cell switch command 402 cannot be applied or shared for one or multiple CCs or cells or CC sets or cell sets, or CC groups or cell groups, at least one of the following can be considered: additional TCI state (s) is included or indicated in cell switch command; default TCI state is defined and/or indicated; TCI state in one CC or cell or CC set or cell set corresponding to TCI state index that is same as that indicated in cell switch command is applied; TCI state in one CC or cell or CC set or cell set associated with RS index that is same as that indicated in TCI state included in cell switch command is applied; RS index in one CC or cell or CC set or cell set that is same as that indicated in TCI state included in cell switch command is applied; TCI state in one CC or cell or CC set or cell set associated with RS index that is QCLed with RS index indicated in TCI state included in cell switch command is applied; or RS index in one CC or cell or CC set or cell set that is QCLed with RS index indicated in TCI state included in cell switch command is applied.

Some embodiments may relate to, methods or rules for special cases. For example, assuming that there are Y CC (s) (or Cell (s) ) for point #1 and there are Z CC (s) (or Cell (s) ) for point #2, then the device has a capability to support up to Q CC (s) (or Cell (s) ) . If Y is larger than Q and/or if Z is larger than Q, some rules or methods can be considered to determine or choose Q out of Y and/or Z CC (s) (or Cell (s) ) . The methods may include: a random method; left for the implementation; based on device's movement trajectory; based on measurement and/or report result; in some examples, the strongest or highest Q measurement results, or randomly Q measurement results, or Q measurement results by implementation, or based on ascending or descending order of measurement and/or report result; based on ascending or descending order of CC or cell index; based on indication. In some examples, the indication is to indicate which CC (s) (or Cell (s) ) is determined or chosen.

If Y is less than Q and/or if Z is less than Q, the device can perform specific operation for these Y or Z CC (s) (or Cell (s) ) . The methods may also be applicable to the case of one or multiple CCs or cells or CC sets or cell sets, or CC groups or cell groups. In some examples, point #can be regarded as CC set or cell set, or CC group or cell group. In some examples, the number of CC (s) (or Cell (s) ) or CC set (s) (or cell set (s) ) , or CC group (s) (or cell group (s) ) and/or which CC (s) (or Cell (s) ) determined or chosen can be configured or indicated or determined by RRC signaling or MAC CE signaling or cell switch command or DCI signaling or pre-defined or default.

Some embodiments may relate to operations for CA cases or dual connectivity (DC) cases. For example, cell switch command 402 may include at least one of cell index and TCI state index. If the cell index is PCell or PSCell, at least one of the following can be considered: TCI state index of PCell or PSCell is applied for SCell, where, optionally, TCI state for SCell is not indicated or included in cell switch command 402 or configured; default TCI state is defined and/or indicated for SCell; TCI state corresponding to TCI state index that is same as TCI state index of PCell or PSCell indicated in cell switch command 402 is applied for SCell; TCI state associated with RS index that is same as that indicated in TCI state index of PCell or PSCell included in cell switch command 402 is applied for SCell; RS index that is same as that indicated in TCI state index of PCell or PSCell included in cell switch command 402 is applied for SCell; TCI state associated with RS index that is QCLed with RS index indicated in TCI state index of PCell or PSCell included in cell switch command 402 is applied for SCell; RS index that is QCLed with RS index indicated in TCI state index of PCell or PSCell included in cell switch command 402 is applied for SCell; TCI state for SCell is indicated or included in cell switch command 402. Optionally, one TCI state is applied for all SCells, or different or independently TCI state is applied for different SCells. Optionally, different or TCI state for different SCells is included in cell switch command 402.

Any of the embodiments may relate to at least one of multiple types of information. An example of the information may include a beam indication or TCI state indication or identification. Wherein beam indication or TCI state indication or identification can be one or multiple or one pair or multiple pair TCI state indexes or identifications or one or multiple RS indexes. An example of the information may include TA information.

An example of the information may include an identification. In some examples, the identification can be used for indicating whether at least one of the information mentioned in the embodiment can be applied for at least one of a cell, a CC, a TRP, a panel, a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels. In some examples, if the identification is configured, the indicated at least one of information mentioned in this embodiment can be applied for a set or a list or group of cells, a set or a list or group of CCs, a set or a list or group of TRPs, or a set or a list or group of panels. Wherein, a reference cell, CC, TRP, or panel is included in or associated with a set or a list or group of cells, a set or a list or group of CCs, a set or a list or group of TRPs, or a set or a list or group of panels. Optionally, at least one of information mentioned in this embodiment is indicated or configured for the reference cell, CC, TRP, or panel.

An example may include one or multiple indications or identifications to trigger TRS Tracking and/or indicate related resource; In some examples, indication or identification to trigger TRS Tracking is related to or associated with at least one of a cell, a CC, a TRP, a panel, a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels. This is to say, the device can perform TRS tracking operation for related or associated at least one of a cell, a CC, a TRP, a panel, a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels.

An example may include a TRS tracking operation; In some examples, TRS tracking operation is related to or associated with at least one of a cell, a CC, a TRP, a panel, a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels. This is to say, the device can perform TRS tracking operation for related to or associated with at least one of a cell, a CC, a TRP, a panel, a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels.

An example may include one or multiple indications or identifications to trigger CSI acquisition and/or indicate related resource; In some examples, indication or identification to trigger CSI acquisition is related to or associated with at least one of a cell, a CC, a TRP, a panel, a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels. This is to say, the device can perform CSI acquisition operation for related or associated at least one of a cell, a CC, a TRP, a panel, a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels.

An example may include a CSI acquisition operation; In some examples, CSI acquisition operation is related to or associated with at least one of a cell, a CC, a TRP, a panel, a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels. This is to say, the device can perform CSI acquisition operation for related to or associated with at least one of a cell, a CC, a TRP, a panel, a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels.

An example may include one or multiple indications or identifications to trigger TA acquisition and/or indicate related resource; In some examples, indication or identification to trigger TA acquisition is related to or associated with at least one of a cell, a CC, a TRP, a panel, a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels. This is to say, the device can perform TA acquisition for related or associated at least one of a cell, a CC, a TRP, a panel, a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels.

An example may include a TA acquisition operation; In some examples, TA acquisition operation is related to or associated with at least one of a cell, a CC, a TRP, a panel, a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels. This is to say, the device can perform TA acquisition operation for related to or associated with at least one of a cell, a CC, a TRP, a panel, a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels.

An example may include one or multiple indications or identifications to trigger SRS transmission and/or indicate related SRS resource; In some examples, indication or identification to trigger SRS transmission and/or indicate related SRS resource is related to or associated with at least one of a cell, a CC, a TRP, a panel, a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels. This is to say, the device can perform SRS transmission for related or associated at least one of a cell, a CC, a TRP, a panel, a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels.

An example may include an SRS transmission. In some examples, SRS transmission is related to or associated with at least one of a cell, a CC, a TRP, a panel, a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels. This is to say, the device can perform SRS transmission for related to or associated with at least one of a cell, a CC, a TRP, a panel, a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels.

An example may include one or multiple indications or identifications to trigger DL synchronization; In some examples, indication or identification to trigger DL synchronization or RS used for DL synchronization is related to or associated with at least one of a cell, a CC, a TRP, a panel, a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels. This is to say, the device can perform DL synchronization or RS tracking for related or associated at least one of a cell, a CC, a TRP, a panel, a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels. In some examples, RS used for DL synchronization can be indicated in TCI state. In some examples, TCI state is related to or associated with at least one of a cell, a CC, a TRP, a panel, a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels.

An example may include one or multiple indications or identifications to trigger and/or activate or deactivate one or multiple TCI states; In some examples, triggered and/or activated or deactivated one or multiple TCI states is related to or associated with or applied for at least one of a cell, a CC, a TRP, a panel, a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels.

An example may include one or multiple indications or identifications to trigger and/or indicate resource position Resource information; In some examples, resource information is used to provide resource position where transmit or receive information to or from at least one of a cell, a CC, a TRP, a panel, a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels. In some examples, CC, Cell, TRP or panel can be target CC, Cell, TRP or panel.

An example may include one or multiple indications or identifications or indexes of at least one of a cell, a Component Carrier (CC) , a Transmit/Receive Point (TRP) , or a panel. An example may include one or multiple identifications or indications or indexes of a set or a list or group of cell, CC, TRP, or panel.

An example may include one or multiple indications or identifications to trigger and/or activate or deactivate at least one of a cell, CC, TRP, panel, a set or a list or group of cells, a set or a list or group of CCs, a set or a list or group of TRPs, or a set or a list or group of panels. In some examples, according to the indication or identification, the device can trigger and/or activate or deactivate activate or deactivate at least one of a cell, CC, TRP, panel, a set or a list or group of cells, a set or a list or group of CCs, a set or a list or group of TRPs, or a set or a list or group of panels. For CA scenario or multiple cells, CCs, TRPs or panels, this field can be used to indicate which cell, CC, TRP or panel to be activated or deactivated, or triggering and/or activation or deactivation of SCell. In some examples, at least one of the information mentioned in the embodiment can be applied for at least one of a cell, a CC, a TRP, a panel, a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels. In some examples, cell, CC, TRP or panel can be activated or deactivated cell, CC, TRP, or panel.

In some cases, TCI state indication or identification or beam indication can be one TCI state index or a pair TCI state index, a set of TCI state, or a set of TCI state pair. Where a pair TCI state includes one TCI state for DL channels/signals and/or one TCI state for UL channels/signals. The size of TCI state set or the size of set of TCI state pair can be configured or predefined or determined based on UE capability, or the number of CC or Cell or TRP or panel within CC or Cell or TRP or panel list or in CA.

In some cases, the identification can be used for indicating whether the information can be applied for one CC or one specified CC or Cell within CA or a set of CC or Cell, or applied for all CCs or Cells within CA or a set of CC or Cell. In some cases, indication to trigger and/or indicate resource position can be used to let the device to transmit or receive to or from target CC or Cell. In some examples, information mentioned above can be used to determine whether one or multiple TCI states can be applied for one or multiple points or point groups or point sets.

In some examples, information mentioned above can be used to determine whether one or multiple TA information can be applied for one or multiple points or point groups or point sets. In some examples, information mentioned above can be used to determine whether received information can be applied for one or multiple points or point groups or point sets. In some examples, information mentioned above can be used to determine whether to trigger TRS tracking and/or indicate related resource for one or multiple points or point groups or point sets. In some examples, information mentioned above can be used to determine whether to perform TRS tracking for one or multiple points or point groups or point sets. In some examples, information mentioned above can be used to determine whether to trigger Channel State Information (CSI) acquisition and/or indicate related resource for one or multiple points or point groups or point sets.

In some examples, information mentioned above can be used to determine whether to perform CSI acquisition for one or multiple points or point groups or point sets. In some examples, information mentioned above can be used to determine whether to trigger TA acquisition and/or indicate related resource for one or multiple points or point groups or point sets. In some examples, information mentioned above can be used to determine whether to perform TA acquisition operation for one or multiple points or point groups or point sets. In some examples, information mentioned above can be used to determine whether to trigger Sounding Reference Signal (SRS) transmission and/or indicate related SRS resource for one or multiple points or point groups or point sets.

In some examples, information mentioned above can be used to determine whether to perform SRS transmission for one or multiple points or point groups or point sets. In some examples, information mentioned above can be used to determine whether to trigger DL synchronization for one or multiple points or point groups or point sets. In some examples, information mentioned above can be used to determine whether to trigger and/or activate or deactivate one or multiple TCI states for one or multiple points or point groups or point sets. In some examples, information mentioned above can be used to determine resource information to transmit or receive information for one or multiple points or point groups or point sets.

In some examples, information mentioned above can be used to determine the information of cell, CC, TRP, or panel. In some examples, information mentioned above can be used to determine the information of a list or group of cell, CC, TRP, or panel. In some examples, information mentioned above can be used to determine whether to activate or deactivate cell, CC, TRP, or panel, or a list or group of cell, CC, TRP, or panel. In some examples, the above mentioned point can be at least one of: a cell, a CC, a TRP, a panel, a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels.

In some implementations, the information may include TCI state to illustrate a method for multiple Cells or CCs or TRPs or panels. The indicated TCI state can be applied for a set of CC configured in the same simultaneous TCI state update list associated with a reference CC. Similar design may be adopted for multiple CCs or cells or CA case, such as introducing a parameter or identification to enable TCI state applied for a set of candidate cell or cell or CC, TRP or panel. For the case that one or multiple cell or CC, TRP or panel is not in simultaneous TCI state application or information list or similar mechanism as simultaneousU-TCI-UpdateList cannot be reused or TCI state or at least one of information mentioned above cannot be shared for one or multiple Cells or CCs or TRPs or panels, additional or multiple TCI state indexes or at least one of information mentioned above should be included or indicated in signaling. Optionally, the signaling can be used to convey information. Optionally, the information can be used for switching or updating or transmission or reception.

FIGS. 5A-C are diagrams illustrating example wireless communications 500, 501, and 503 associated with serving cell changes, according to various arrangements. The wireless communications 500, 501, and 503 may include a device 502, a source 504 (e.g., a source serving cell) , a target 506 (e.g., a target serving cell) , a CC list or a set of CC or a Cell list or a set of Cell 508 of the source 504, and a CC list or a set of CC or a Cell list or a set of Cell 510 of the source 506. In some cases, the device 502 may be moving in a direction 512 from a coverage area of the source 504 to a coverage area of the target 506.

In some examples, a CC list or a set of CC or a Cell list or a set of Cell 508 and/or 510 is configured, labeled as CC #1 (or Cell #1) , CC #2 (or Cell #2) , CC #3 (or Cell #3) , …, CC #N (or Cell #N) , CC #N+1 (or Cell #N+1) , CC #N+2 (or Cell #N+2) , CC #N+3 (or Cell #N+3) , …, CC #N+M (or Cell #N+M) , where, N or M is a positive integer. The maximum of N or M can be configured or predefined or determined based on UE capability.

In some examples, for the case that a device is configured for CA operation, or a device indicates to have a capability of carrier aggregation, the device may move from one Cell or CC within a set of Cell or CC to one Cell or CC within another set of Cell or CC. As shown in FIGS. 5A-B, the device 502 is configured a set of CC or Cell and these CC or Cell can be aggregated in CA scenario, where CC #1 (or Cell #1) , CC #2 (or Cell #2) , CC #3 (or Cell #3) , …, CC #N (or Cell #N) are configured to the device 502, labeled as source 504, and CC #N+1 (or Cell #N+1) , CC #N+2 (or Cell #N+2) , CC #N+3 (or Cell #N+3) , …, CC #N+M (or Cell #N+M) are configured to the device 502, labeled as target 506.

In FIG. 5A, the device moves from CC#1 or Cell #1 (Primary Cell, PCell) to CC #N+1 or Cell #N+1 (Primary Cell, PCell) , that is, it is a CC or Cell change from one CC or PCell to another CC or PCell case. In FIG. 5B, the device moves from CC#1 or Cell #1 (Primary Cell, PCell) to CC #N+3 or Cell #N+3 (Secondary Cell, SCell) , that is, it is a CC or Cell change from one CC or PCell to another CC or SCell case and target CC or SCell is not a CC or Cell within previous source. In some examples, the device 502 moves from CC#or Cell # (Secondary Cell, SCell) to CC #or Cell # (Secondary Cell, SCell) , that is, it is a CC or Cell change from one CC or SCell to another CC or SCell case.

In some examples, for the case that a device 502 is configured for CA operation, or a device 502 indicates to have a capability of carrier aggregation, the device 502 may move from one Cell or CC within a set of Cell or CC to one Cell or CC within another set of Cell or CC. As shown in FIG. 5C, the device 502 is configured a set of CC or Cell and these CC or Cell can be aggregated in CA scenario, where CC #1 (or Cell #1) , CC #2 (or Cell #2) , CC #3 (or Cell #3) , …, CC #N (or Cell #N) are configured to the device, labeled as source, and CC #3 (or Cell #3) , CC #N-2 (or Cell #N-2) , CC #N+1 (or Cell #N+1) , …, CC #N+M (or Cell #N+M) are configured to the device, labeled as target. The device 502 moves from CC#1 or Cell #1 (Primary Cell, PCell) to CC #3 or Cell #3 (Primary Cell, PCell) , where CC #3 or Cell #3 in source is a Secondary CC or Cell, but in target 506, it is a primary CC or Cell that is a previous source cell. For example, target Primary CC or Cell is a current or source Secondary CC or Cell.

For the case that a device 502 is not configured for carrier aggregation operation, or a device 502 indicates not to have a capability of carrier aggregation, or a device 502 is configured with multiple CCs or Cells, or a device 502 indicates to have a capability of supporting multi-CCs or multi-Cells, there is a potential mobility scenario. For example, the device 502 may move from one Cell or CC within a set of Cell or CC to one Cell or CC within another set of Cell or CC.

Various cases on whether Cell or CC change or switching with other Cells or CCs within a set of CC or Cell, or CC or Cell list, or CC or Cell group may be applicable to the embodiments as described herein. For example, a first case (Case-1) may be associated with CC or Cell change (or switching) with other one or multiple CCs or Cells change (or switching) .

Case-1.1: CC change (or switching) with other one or multiple CCs change (or switching) . Case-1.2: CC change (or switching) with other all CCs change (or switching) . Case-1.3: CC change (or switching) with other one or multiple activated CCs change (or switching) .

Case-1.4: Primary CC change (or switching) with Secondary CC change (or switching) . Case-1.5: Primary CC change (or switching) with one or multiple Secondary CCs change (or switching) . Case-1.6: Primary CC change (or switching) with one or multiple activated Secondary CCs change (or switching) . Case-1.7: Primary CC change (or switching) with indicated or specified Secondary CC change (or switching) . Case-1.8: Primary CC change (or switching) with one or multiple indicated or specified Secondary CCs change (or switching) . Case-1.9: Primary CC change (or switching) with all Secondary CCs change (or switching) .

Case-1.10: Cell change (or switching) with other one or multiple Cells change (or switching) . Case-1.11: Cell change (or switching) with other all Cells change (or switching) . Case-1.12: Cell change (or switching) with other one or multiple activated or indicated or specified Cells change (or switching) . Case-1.13: Cell change (or switching) with other all activated or indicated or specified Cells change (or switching) .

Case-1.14: PCell or PSCell change (or switching) with SCell change (or switching) . Case-1.15: PCell or PSCell change (or switching) with one or multiple SCells change (or switching) . Case-1.16: PCell or PSCell change (or switching) with all SCells change (or switching) . Case-1.17: PCell or PSCell change (or switching) with one or multiple activated or indicated or specified SCells change (or switching) . Case-1.18: PCell or PSCell change (or switching) with all activated or indicated or specified SCells change (or switching) .

Case-1.19: Change (or switching) from PCell or PSCell of a set of CC or Cell, or a CC or Cell list, or a CC or Cell group to SCell of another set of CC or Cell, or another CC or Cell list, or another CC or Cell group. Optionally, with PCell or PSCell change within another set of CC or Cell, or another CC or Cell list, or another CC or Cell group.

Case-1.20: Change (or switching) from PCell or PSCell of a set of CC or Cell, or a CC or Cell list, or a CC or Cell group to SCell of another set of CC or Cell, or another CC or Cell list, or another CC or Cell group. Optionally, with PCell or PSCell change and/or other one or multiple SCells change within another set of CC or Cell, or another CC or Cell list, or another CC or Cell group.

Case-1.21: Change (or switching) from SCell of a set of CC or Cell, or a CC or Cell list, or a CC or Cell group to PCell or PSCell of another set of CC or Cell, or another CC or Cell list, or another CC or Cell group. Optionally, with the following one of: SCell change (or switching) of another set of CC or Cell, or another CC or Cell list, or another CC or Cell group; one or multiple SCells change (or switching) of another set of CC or Cell, or another CC or Cell list, or another CC or Cell group; all SCells change (or switching) of another set of CC or Cell, or another CC or Cell list, or another CC or Cell group; one or multiple activated or indicated or specified SCells change (or switching) of another set of CC or Cell, or another CC or Cell list, or another CC or Cell group; or all activated or indicated or specified SCells change (or switching) of another set of CC or Cell, or another CC or Cell list, or another CC or Cell group.

Case-1.22: Change (or switching) from SCell of a set of CC or Cell, or a CC or Cell list, or a CC or Cell group to SCell of another set of CC or Cell, or another CC or Cell list, or another CC or Cell group. Optionally, with PCell or PSCell change and/or other one or multiple SCells change within another set of CC or Cell, or another CC or Cell list, or another CC or Cell group.

Case-1.23: Change (or switching) from PCell or PSCell of a set of CC or Cell, or a CC or Cell list, or a CC or Cell group to SCell of another set of CC or Cell, or another CC or Cell list, or another CC or Cell group. Wherein, target SCell is a SCell of previous set of CC or Cell, or a CC or Cell list, or a CC or Cell group. Optionally, with PCell or PSCell change and/or other one or multiple SCells change within another (or target) set of CC or Cell, or another CC or Cell list, or another CC or Cell group.

Case-1.24: Change (or switching) from SCell of a set of CC or Cell, or a CC or Cell list, or a CC or Cell group to PCell or PSCell of another set of CC or Cell, or another CC or Cell list, or another CC or Cell group. Wherein, target PCell or PSCell is a PCell or PSCell of previous set of CC or Cell, or a CC or Cell list, or a CC or Cell group. Optionally, with the following one of: SCell change (or switching) of another (or target) set of CC or Cell, or another CC or Cell list, or another CC or Cell group; one or multiple SCells change (or switching) of another (or target) set of CC or Cell, or another CC or Cell list, or another CC or Cell group; all SCells change (or switching) of another (or target) set of CC or Cell, or another CC or Cell list, or another CC or Cell group; one or multiple activated or indicated or specified SCells change (or switching) of another (or target) set of CC or Cell, or another CC or Cell list, or another CC or Cell group; all activated or indicated or specified SCells change (or switching) of another (or target) set of CC or Cell, or another CC or Cell list, or another CC or Cell group.

A second case (Case-2) may be associated with CC or Cell change (or switching) without other one or multiple or all CCs or Cells change (or switching) . Case-2.1: Change (or switching) from one CC of a set of CC, or a CC list, or a CC group to one CC of another set of CC, or another CC list, or another CC group. Optionally, without other one or multiple or all CCs change (or switching) . Case-2.2: Change (or switching) from a Primary CC of a set of CC, or a CC list, or a CC group to a Primary CC of another set of CC, or another CC list, or another CC group. Optionally, without other one or multiple or all CCs change (or switching) . optionally other CC can be primary or secondary CC. Case-2.3: Change (or switching) from a Primary of a set of CC, or a CC list, or a CC group to a secondary CC of another set of CC, or another CC list, or another CC group. Optionally, without other one or multiple or all CCs change (or switching) . optionally other CC can be primary or secondary CC.

Case-2.4: Change (or switching) from a secondary of a set of CC, or a CC list, or a CC group to a Primary CC of another set of CC, or another CC list, or another CC group. Optionally, without other one or multiple or all CCs change (or switching) . optionally other CC can be primary or secondary CC. Case-2.5: Change (or switching) from a Primary or secondary of a set of CC, or a CC list, or a CC group to a secondary or Primary CC of another set of CC, or another CC list, or another CC group. Optionally, target secondary or Primary CC is a secondary or Primary CC of previous set of CC or Cell, or a CC or Cell list, or a CC or Cell group. Or another set of CC, or another CC list, or another CC group is the same with previous set of CC, or a CC list, or a CC group. Optionally, without other one or multiple or all CCs change (or switching) . optionally other CC can be primary or secondary CC.

Case-2.6: Change (or switching) from PCell or PSCell of a set of Cell, or a Cell list, or a Cell group to PCell or PSCell of another set of Cell, or another Cell list, or another Cell group. Optionally, without other one or multiple or all Cells change (or switching) . Optionally other Cell can be PSCell, or PCell, or SCell. Case-2.7: Change (or switching) from PCell or PSCell of a set of Cell, or a Cell list, or a Cell group to SCell of another set of Cell, or another Cell list, or another Cell group. Optionally, without other one or multiple or all Cells change (or switching) . Optionally other Cell can be PSCell, or PCell, or SCell. Case-2.8: Change (or switching) from SCell of a set of Cell, or a Cell list, or a Cell group to PCell or PSCell of another set of Cell, or another Cell list, or another Cell group. Optionally, without other one or multiple or all Cells change (or switching) . optionally other Cell can be PSCell, or PCell, or SCell.

Case-2.9: Change (or switching) from SCell of a set of Cell, or a Cell list, or aCell group to SCell of another set of Cell, or another Cell list, or another Cell group. Optionally, without other one or multiple or all Cells change (or switching) . optionally other Cell can be PSCell, or PCell, or SCell. Case-2.10: Change (or switching) from PCell or PSCell or SCell of a set of Cell, or a Cell list, or a Cell group to SCell or PCell or PSCell of another set of Cell, or another Cell list, or another Cell group. Optionally, target SCell or PCell or PSCell is SCell or PCell or PSCell of previous set of Cell, or a Cell list, or a Cell group. Or another set of Cell, or another Cell list, or another Cell group is the same with previous set of Cell, or a Cell list, or a Cell group. Optionally, without other one or multiple or all Cells change (or switching) . optionally other Cell can be PSCell, or PCell, or SCell.

FIG. 6 is a diagram illustrating an example communication procedure 600, according to various arrangements. The communication procedure 600 may include, at 602, a TRS tracking to be triggered being absent for a cell, a CC, a TRP, or a panel within a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels, or TCI state cannot be shared for a cell, a CC, a TRP, or a panel within a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels, or for a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels, or an identification is not configured or indicated, or the identification is configured or indicated as “disable. ”

At 604, a user device may perform TRS tracking. In some examples, the user device may perform TRS tracking for one or multiple cells, CCs, TRPs, or panels or one or multiple list or group of cells, CCs, TRPs, or panels included or indicated in the received information. In some examples, the user device can perform TRS tracking for one or multiple cells, CCs, TRPs, or panels or one or multiple list or group of cells, CCs, TRPs, or panels where RS for TRS tracking is associated with or QCLed with RS for TRS tracking indicated for a reference cell, a reference CC, a reference TRP, a reference panel, a reference list or group of cells, a reference list or group CCs, a reference list or group TRPs, or a reference list or group panels.

In some examples, the user device can perform TRS tracking for one or multiple cells, CCs, TRPs, or panels or one or multiple list or group of cells, CCs, TRPs, or panels where RS index is same as RS index for TRS tracking indicated for a reference cell, a reference CC, a reference TRP, a reference panel, a reference list or group of cells, a reference list or group CCs, a reference list or group TRPs, or a reference list or group panels.

In some examples, the user device can perform TRS tracking for one or multiple cells, CCs, TRPs, or panels or one or multiple list or group of cells, CCs, TRPs, or panels where RS for TRS tracking is same as or is associated with or QCLed with RS for TRS tracking in TCI state for a reference cell, a reference CC, a reference TRP, a reference panel, a reference list or group of cells, a reference list or group CCs, a reference list or group TRPs, or a reference list or group panels.

In some examples, an identification is configured or indicated, or the identification is configured or indicated as “enable” , the user device can perform TRS tracking for one or multiple cells, CCs, TRPs, or panels or one or multiple list or group of cells, CCs, TRPs, or panels in the same cell, CC, TRP, or panel list.

In some examples, multiple indications or identifications of TRS tracking is included or indicated in the received information, the user device can perform TRS tracking for one or multiple cells, CCs, TRPs, or panels or one or multiple list or group of cells, CCs, TRPs, or panels associated with indication or identification of TRS tracking.

FIG. 7 is a diagram illustrating an example communication procedure 700, according to various arrangements. The communication procedure 700 may include, at 702, a CSI acquisition to be triggered being absent for a cell, a CC, a TRP, or a panel within a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels, or TCI state cannot be shared for a cell, a CC, a TRP, or a panel within a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels, or for a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels, or an identification is not configured or indicated, or the identification is configured or indicated as “disable. ”

At 704, a user device may perform CSI acquisition. In some examples, the user device can perform CSI acquisition for one or multiple cells, CCs, TRPs, or panels or one or multiple list or group of cells, CCs, TRPs, or panels included or indicated in the received information. In some examples, the user device can perform CSI acquisition for one or multiple cells, CCs, TRPs, or panels or one or multiple list or group of cells, CCs, TRPs, or panels where RS for CSI acquisition is associated with or QCLed with RS for CSI acquisition indicated for a reference cell, a reference CC, a reference TRP, a reference panel, a reference list or group of cells, a reference list or group CCs, a reference list or group TRPs, or a reference list or group panels.

In some examples, the user device can perform CSI acquisition for one or multiple cells, CCs, TRPs, or panels or one or multiple list or group of cells, CCs, TRPs, or panels where RS index is same as RS index for CSI acquisition indicated for a reference cell, a reference CC, a reference TRP, a reference panel, a reference list or group of cells, a reference list or group CCs, a reference list or group TRPs, or a reference list or group panels.

In some examples, the user device can perform CSI acquisition for one or multiple cells, CCs, TRPs, or panels or one or multiple list or group of cells, CCs, TRPs, or panels where RS for CSI acquisition is same as or is associated with or QCLed with RS for CSI acquisition in TCI state for a reference cell, a reference CC, a reference TRP, a reference panel, a reference list or group of cells, a reference list or group CCs, a reference list or group TRPs, or a reference list or group panels.

In some examples, an identification is configured or indicated, or the identification is configured or indicated as “enable” , the user device can perform CSI acquisition for one or multiple cells, CCs, TRPs, or panels or one or multiple list or group of cells, CCs, TRPs, or panels in the same cell, CC, TRP, or panel list.

In some examples, multiple indications or identifications of CSI acquisition is included or indicated in the received information, the user device can perform CSI acquisition for one or multiple cells, CCs, TRPs, or panels or one or multiple list or group of cells, CCs, TRPs, or panels associated with indication or identification of CSI acquisition.

FIG. 8 is a diagram illustrating an example communication procedure 800, according to various arrangements. The communication procedure 800 may include, at 802, a TA acquisition to be triggered being absent for a cell, a CC, a TRP, or a panel within a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels, or TCI state cannot be shared for a cell, a CC, a TRP, or a panel within a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels, or for a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels, or an identification is not configured or indicated, or the identification is configured or indicated as “disable. ”

At 804, a user device may perform TA acquisition. In some examples, the user device can perform TA acquisition for one or multiple cells, CCs, TRPs, or panels or one or multiple list or group of cells, CCs, TRPs, or panels included or indicated in the received information. In some examples, the user device can perform TA acquisition for one or multiple cells, CCs, TRPs, or panels or one or multiple list or group of cells, CCs, TRPs, or panels where RS and/or RO for TA acquisition is associated with or QCLed with RS and/or RO for TA acquisition indicated for a reference cell, a reference CC, a reference TRP, a reference panel, a reference list or group of cells, a reference list or group CCs, a reference list or group TRPs, or a reference list or group panels.

In some examples, the user device can perform TA acquisition for one or multiple cells, CCs, TRPs, or panels or one or multiple list or group of cells, CCs, TRPs, or panels where RS and/or RO for TA acquisition is same as RS and/or RO index for TA acquisition indicated for a reference cell, a reference CC, a reference TRP, a reference panel, a reference list or group of cells, a reference list or group CCs, a reference list or group TRPs, or a reference list or group panels.

In some examples, an identification is configured or indicated, or the identification is configured or indicated as “enable” , the user device can perform TA acquisition for one or multiple cells, CCs, TRPs, or panels or one or multiple list or group of cells, CCs, TRPs, or panels in the same cell, CC, TRP, or panel list.

In some examples, multiple indications or identifications of TA acquisition is included or indicated in the received information, the user device can perform TA acquisition for one or multiple cells, CCs, TRPs, or panels or one or multiple list or group of cells, CCs, TRPs, or panels associated with indication or identification of TA acquisition.

FIG. 9 is a diagram illustrating an example communication procedure 900, according to various arrangements. The communication procedure 900 may include, at 902, an SRS transmission to be triggered being absent for a cell, a CC, a TRP, or a panel within a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels, or TCI state cannot be shared for a cell, a CC, a TRP, or a panel within a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels, or for a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels, or an identification is not configured or indicated, or the identification is configured or indicated as “disable. ”

At 904, a user device may perform SRS transmission. In some examples, the user device can perform SRS transmission for one or multiple cells, CCs, TRPs, or panels or one or multiple list or group of cells, CCs, TRPs, or panels included or indicated in the received information. In some examples, the user device can perform SRS transmission for one or multiple cells, CCs, TRPs, or panels or one or multiple list or group of cells, CCs, TRPs, or panels where RS is associated with or QCLed with SRS transmitted for a reference cell, a reference CC, a reference TRP, a reference panel, a reference list or group of cells, a reference list or group CCs, a reference list or group TRPs, or a reference list or group panels.

In some examples, the user device can perform SRS transmission for one or multiple cells, CCs, TRPs, or panels or one or multiple list or group of cells, CCs, TRPs, or panels where SRS resource index is same as that transmitted for a reference cell, a reference CC, a reference TRP, a reference panel, a reference list or group of cells, a reference list or group CCs, a reference list or group TRPs, or a reference list or group panels.

In some examples, an identification is configured or indicated, or the identification is configured or indicated as “enable” , the user device can perform SRS transmission for one or multiple cells, CCs, TRPs, or panels or one or multiple list or group of cells, CCs, TRPs, or panels in the same cell, CC, TRP, or panel list.

In some examples, multiple indications or identifications of SRS transmission is included or indicated in the received information, the user device can perform SRS transmission for one or multiple cells, CCs, TRPs, or panels or one or multiple list or group of cells, CCs, TRPs, or panels associated with indication or identification of SRS transmission.

FIG. 10 is a diagram illustrating an example communication procedure 1000, according to various arrangements. The communication procedure 1000 may include, at 1002, a DL synchronization to be triggered being absent for a cell, a CC, a TRP, or a panel within a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels, or TCI state cannot be shared for a cell, a CC, a TRP, or a panel within a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels, or for a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels, or an identification is not configured or indicated, or the identification is configured or indicated as “disable. ”

At 1004, a user device may apply DL synchronization. In some examples, the user device can apply DL synchronization from a reference cell, a reference CC, a reference TRP, a reference panel, a reference list or group of cells, a reference list or group CCs, a reference list or group TRPs, or a reference list or group panels. In some examples, the user device can perform DL synchronization for one or multiple cells, CCs, TRPs, or panels or one or multiple list or group of cells, CCs, TRPs, or panels included or indicated in the received information.

In some examples, the user device can perform DL synchronization for one or multiple cells, CCs, TRPs, or panels or one or multiple list or group of cells, CCs, TRPs, or panels where RS for DL sync is associated with or QCLed with RS for DL sync from a reference cell, a reference CC, a reference TRP, a reference panel, a reference list or group of cells, a reference list or group CCs, a reference list or group TRPs, or a reference list or group panels.

In some examples, the user device can perform DL synchronization for one or multiple cells, CCs, TRPs, or panels or one or multiple list or group of cells, CCs, TRPs, or panels where RS for DL sync is same as RS for DL sync from a reference cell, a reference CC, a reference TRP, a reference panel, a reference list or group of cells, a reference list or group CCs, a reference list or group TRPs, or a reference list or group panels.

In some examples, an identification is configured or indicated, or the identification is configured or indicated as “enable” , the user device can perform or apply DL synchronization for one or multiple cells, CCs, TRPs, or panels or one or multiple list or group of cells, CCs, TRPs, or panels in the same cell, CC, TRP, or panel list.

In some examples, multiple indications or identifications of DL synchronization is included or indicated in the received information, the user device can perform DL synchronization for one or multiple cells, CCs, TRPs, or panels or one or multiple list or group of cells, CCs, TRPs, or panels associated with indication or identification of DL synchronization.

FIG. 11 is a diagram illustrating an example communication procedure 1100, according to some arrangements. The communication procedure 1100 may include, at 1102, one or multiple TCI states to be triggered or activated or deactivated being absent for a cell, a CC, a TRP, or a panel within a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels, or TCI state cannot be shared for a cell, a CC, a TRP, or a panel within a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels, or for a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels, or an identification is not configured or indicated, or the identification is configured or indicated as “disable. ”

At 1104, a user device may apply one or multiple TCI states activated or deactivated. In some examples, the user device can apply one or multiple TCI states activated or deactivated from a reference cell, a reference CC, a reference TRP, a reference panel, a reference list or group of cells, a reference list or group CCs, a reference list or group TRPs, or a reference list or group panels. In some examples, the user device can activate or deactivate one or multiple TCI states for one or multiple cells, CCs, TRPs, or panels or one or multiple list or group of cells, CCs, TRPs, or panels included or indicated in the received information.

In some examples, the user device can one or multiple TCI states for one or multiple cells, CCs, TRPs, or panels or one or multiple list or group of cells, CCs, TRPs, or panels where RS in TCI state is associated with or QCLed with RS in TCI state activated or deactivated from a reference cell, a reference CC, a reference TRP, a reference panel, a reference list or group of cells, a reference list or group CCs, a reference list or group TRPs, or a reference list or group panels.

In some examples, the user device can one or multiple TCI states for one or multiple cells, CCs, TRPs, or panels or one or multiple list or group of cells, CCs, TRPs, or panels where RS index in TCI state is same as RS index in TCI state activated or deactivated from a reference cell, a reference CC, a reference TRP, a reference panel, a reference list or group of cells, a reference list or group CCs, a reference list or group TRPs, or a reference list or group panels.

In some examples, an identification is configured or indicated, or the identification is configured or indicated as “enable” , the user device can apply activated or deactivated one or multiple TCI states for one or multiple cells, CCs, TRPs, or panels or one or multiple list or group of cells, CCs, TRPs, or panels in the same cell, CC, TRP, or panel list.

In some examples, multiple indications or identifications to trigger and/or activate or deactivate one or multiple TCI states is included or indicated in the received information, the user device can apply activated or deactivated one or multiple TCI states for one or multiple cells, CCs, TRPs, or panels or one or multiple list or group of cells, CCs, TRPs, or panels associated with indication or identification to trigger and/or activate or deactivate one or multiple TCI states.

In some examples, one or multiple indications or identifications to trigger and/or activate or deactivate at least one of a cell, CC, TRP, panel, a set or a list or group of cells, a set or a list or group of CCs, a set or a list or group of TRPs, or a set or a list or group of panels. In some examples, according to the indication or identification, the device can trigger and/or activate or deactivate activate or deactivate at least one of a cell, CC, TRP, panel, a set or a list or group of cells, a set or a list or group of CCs, a set or a list or group of TRPs, or a set or a list or group of panels. For CA scenario or multiple cells, CCs, TRPs or panels, this field can be used to indicate which cell, CC, TRP or panel to be activated or deactivated, or triggering and/or activation or deactivation of SCell. In some examples, at least one of the information mentioned in the embodiment can be applied for at least one of a cell, a CC, a TRP, a panel, a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels. In some examples, cell, CC, TRP or panel can be activated or deactivated cell, CC, TRP, or panel.

In some examples, multiple indications or identifications to trigger and/or activate or deactivate at least one of a cell, CC, TRP, panel, a set or a list or group of cells, a set or a list or group of CCs, a set or a list or group of TRPs, or a set or a list or group of panels is included or indicated in the received information, the user device will activate or deactivate at least one of a cell, CC, TRP, panel, a set or a list or group of cells, a set or a list or group of CCs, a set or a list or group of TRPs, or a set or a list or group of panels.

In some examples, an identification is configured or indicated, or the identification is configured or indicated as “enable” , the user device will activate or deactivate one or multiple cells, CCs, TRPs, or panels or one or multiple list or group of cells, CCs, TRPs, or panels. Optionally, it is applied for the same type of cell, CC, TRP, or panel.

FIG. 12 is a flowchart diagram illustrating an example method 1200 for providing information applied for one or multiple points for serving cell changes, according to various arrangements. In some cases, the method 1200 may include a signaling of information from a network node.

At 1202, a user device may receive information from a network node through a signaling. At 1204, the user device may perform, according to the received information, related operation for one or multiple points or point groups or point sets.

In some embodiments, the information may include at least one of: one or multiple or one or multiple pairs Transmission Configuration Indicator (TCI) state indexes or identifications; TCI state indication or identification; Timing Advance (TA) information; an identification; one or multiple indications or identifications to trigger Tracking Reference Signal (TRS) tracking and/or indicate related resource; a TRS tracking operation; one or multiple indications or identifications to trigger Channel State Information (CSI) acquisition and/or indicate related resource; a CSI acquisition operation; one or multiple indications or identifications to trigger TA acquisition and/or indicate related resource; a TA acquisition operation; one or multiple indications or identifications to trigger Sounding Reference Signal (SRS) transmission and/or indicate related SRS resource; an SRS transmission; one or multiple indications or identifications to trigger DL synchronization; one or multiple indications or identifications to trigger and/or activate or deactivate one or multiple TCI states; resource information; one or multiple indications or identifications of at least one of a cell, a Component Carrier (CC) , a Transmit/Receive Point (TRP) , or a panel; one or multiple indications or identifications of a cell, a CC, a TRP, or a panel list or a group; one or multiple indications or identifications to activate or deactivate a cell, a CC, a TRP, a panel, a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels.

In some embodiments, the identification is used for indicating whether at least one of the information received by user device can be applied for a cell, a CC, a TRP, a panel, a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels. In some embodiments, the TCI state indication or identification can be one TCI state index or a pair TCI state index, a set of TCI state, or a set of TCI state pair.

In some embodiments, the one or multiple points include at least one of: a cell, a CC, a TRP, a panel, a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels.

In some embodiments, the received information can be configured to at least one of: determine whether one or multiple Transmission Configuration Indicator (TCI) states can be applied for the one or multiple points, the point groups, or the point sets; determine whether Timing Advance (TA) information can be applied for the one or multiple points, the point groups, or the point sets; determine whether received information can be applied for the one or multiple points, the point groups, or the point sets; determine whether to trigger Tracking Reference Signal (TRS) tracking and/or indicate related resource for the one or multiple points, the point groups, or the point sets; determine whether to perform TRS tracking for the one or multiple points, the point groups, or the point sets; determine whether to trigger Channel State Information (CSI) acquisition and/or indicate related resource for the one or multiple points, the point groups, or the point sets; determine whether to perform CSI acquisition for the one or multiple points, the point groups, or the point sets; determine whether to trigger TA acquisition and/or indicate related resource for the one or multiple points, the point groups, or the point sets; determine whether to perform TA acquisition operation for the one or multiple points, the point groups, or the point sets; determine whether to trigger Sounding Reference Signal (SRS) transmission and/or indicate related SRS resource for the one or multiple points, the point groups, or the point sets; determine whether to perform SRS transmission for the one or multiple points, the point groups, or the point sets; determine whether to trigger DL synchronization for the one or multiple points, the point groups, or the point sets; determine whether to trigger and/or activate or deactivate one or multiple TCI states for the one or multiple points, the point groups, or the point sets; determine resource information to transmit or receive information for the one or multiple points, the point groups, or the point sets; determine information of a cell, a CC, a TRP, or a panel; determine the information of a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels; or determine whether to activate or deactivate a cell, a CC, a TRP, a panel, a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels.

In some embodiments, if one TCI state indication, one index, or one identification of TCI state is received by the user device, comprises at least one of the following: the TCI state corresponding to the TCI state indication, index, and/or identification of TCI state is applied for a cell, a CC, a TRP, or a panel corresponding to an index or identification of the cell, the CC, the TRP, or the panel; the TCI state is applied for a cell, a CC, a TRP, or a panel; the TCI state corresponding to TCI state indication, index, and/or identification of TCI state is applied for a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels corresponding to an index or identification of the list or group of cells, the list or group of CCs, the list or group of TRPs, or the list or group of panels; the TCI state is applied for a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels; the TCI state corresponding to TCI state indication, index, and/or identification of TCI state, or TCI state is applied for a cell, a CC, a TRP, or a panel corresponding to an index or identification of the cell, the CC, the TRP, or the panel associated with the TCI state; the TCI state is applied for a cell, a CC, a TRP, or a panel associated with the TCI state; the TCI state corresponding to TCI state indication, index, and/or identification of TCI state or TCI state is applied for a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels corresponding to an index or identification of the list or group of cells, the list or group of CCs, the list or group of TRPs, or the list or group of panels including or associated with a cell, a CC, a TRP, or a panel associated with the TCI state and/or a cell, CC, TRP, or panel; the TCI state is applied for a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels including or associated with a cell, a CC, a TRP, or a panel associated with or where is configured the TCI state; the TCI state is applied for a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels including or associated with a cell, a CC, a TRP, or a panel; the TCI state corresponding to TCI state indication, index, and/or identification of TCI state or TCI state is applied for a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels corresponding to an index or identification of the list or group of cells, the list or group of CCs, the list or group of TRPs, or the list or group of panels associated with the TCI state; the TCI state is applied for a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels associated with the TCI state; the TCI state corresponding to TCI state indication, index, and/or identification of TCI state or TCI state is applied for a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels corresponding to an index or identification of the list or group of cells, the list or group of CCs, the list or group of TRPs, or the list or group of panels including or associated with a cell, a CC, a TRP, or a panel corresponding to the index or identification of the cell, the CC, the TRP, or the panel; the TCI state is applied for a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels including or associated with a cell, a CC, a TRP, or a panel corresponding to an index or identification of the cell, the CC, the TRP, or the panel; or the TCI state is applied for a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels if an identification is configured or indicated, or the identification is configured or indicated as “enable” .

In some embodiments, if multiple TCI states, multiple indexes of TCI states, or multiple identifications of TCI states are received by the user device, comprises at least one of the following: each of the TCI states is applied for a cell, a CC, a TRP, or a panel within a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels; each of the TCI states is applied for a subset of cells, a subset of CCs, a subset of TRPs, or a subset of panels within a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels; the TCI states are applied for a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels; or the TCI states are applied for a cell, a CC, a TRP, or a panel within a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels.

In some embodiments, if a TCI state is absent for a cell, a CC, a TRP, or a panel within a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels, or TCI state cannot be shared for a cell, a CC, a TRP, or a panel within a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels, or for a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels, or an identification is not configured or indicated, or the identification is configured or indicated as “disable” , comprises at least one of the following: the user device can apply a TCI state from a reference cell, a reference CC, a reference TRP, a reference panel, a reference list or group of cells, a reference list or group of CCs, a reference list or group of TRPs, or a reference list or group of panels; the user device can apply a TCI state that is the same as a TCI state index or identification from a reference cell, a reference CC, a reference TRP, a reference panel, a reference list or group of cells, a reference list or group CCs, a reference list or group TRPs, or a reference list or group panels; the user device can apply a TCI state that is associated with an RS index included in the TCI state from a reference cell, a reference CC, a reference TRP, a reference panel, a reference list or group of cells, a reference list or group CCs, a reference list or group TRPs, or a reference list or group panels; the user device can apply a TCI state associated with an RS index that is QCLed with an RS index included in the TCI state from a reference cell, a reference CC, a reference TRP, a reference panel, a reference list or group of cells, a reference list or group of CCs, a reference list or group of TRPs, or a reference list or group of panels; the user device can apply an RS index included in a TCI state from a reference cell, a reference CC, a reference TRP, a reference panel, a reference list or group of cells, a reference list or group of CCs, a reference list or group of TRPs, or a reference list or group of panels; the user device can apply an RS index from a reference cell, a reference CC, a reference TRP, a reference panel, a reference list or group of cells, a reference list or group of CCs, a reference list or group of TRPs, or a reference list or group of panels; the user device can apply an RS index that is the same as an RS index included in a TCI state from a reference cell, a reference CC, a reference TRP, a reference panel, a reference list or group of cells, a reference list or group of CCs, a reference list or group of TRPs, or a reference list or group of panels; the user device can apply an RS index that is the same as an RS index from a reference cell, a reference CC, a reference TRP, a reference panel, a reference list or group of cells, a reference list or group of CCs, a reference list or group of TRPs, or a reference list or group of panels; the user device can apply an RS index that is QCLed with ab RS index included in a TCI state from a reference cell, a reference CC, a reference TRP, a reference panel, a reference list or group of cells, a reference list or group of CCs, a reference list or group of TRPs, or a reference list or group of panels; the user device can apply an RS index that is QCLed with an RS index from a reference cell, a reference CC, a reference TRP, a reference panel, a reference list or group of cells, a reference list or group of CCs, a reference list or group of TRPs, or a reference list or group of panels; or the user device can apply one or more the indicated TCI states included or indicated in the received information.

In some embodiments, the reference cell, the reference CC, the reference TRP, or the reference panel is a cell, CC, TRP, or panel associated with the TCI state or the information received by the user device; or the reference list or group of cells, the reference list or group of CCs, the reference list or group of TRPs, or the reference list or group of panels is a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels including or associated with at least one cell, CC, TRP, or panel associated with the TCI state or the information received by the user device.

In some embodiments, at least one of a number of the point, the point groups, or the point sets, a number of TCI states, a number of TA, a number of performing TRS tracking, a number of point or point groups where TRS tracking is performed, a number of performing CSI acquisition, a number of point or point groups where CSI acquisition is performed, a number of performing TA acquisition, a number of point or point groups where TA acquisition is performed, a number of performing SRS transmission, a number of point or point groups where SRS transmission is performed, a number of triggering and/or activating or deactivating TCI state, or a number of triggering and/or activating or deactivating point or point groups or point sets is determined based on a capability of the user device, or based on a configuration.

In some embodiments, the signaling can be at least one of DCI signaling, MAC CE signaling, or RRC signaling. In some embodiments, the signaling is used to indicate or convey information for point or point group switching, or simultaneously information update or application.

While various arrangements of the present solution have been described above, it should be understood that they have been presented by way of example only, and not by way of limitation. Likewise, the various diagrams may depict an example architectural or configuration, which are provided to enable persons of ordinary skill in the art to understand example features and functions of the present solution. Such persons would understand, however, that the solution is not restricted to the illustrated example architectures or configurations but can be implemented using a variety of alternative architectures and configurations. Additionally, as would be understood by persons of ordinary skill in the art, one or more features of some arrangements can be combined with one or more features of another arrangement described herein. Thus, the breadth and scope of the present disclosure should not be limited by any of the above-described illustrative arrangements.

It is also understood that any reference to an element herein using a designation such as “first, ” “second, ” and so forth does not generally limit the quantity or order of those elements. Rather, these designations can be used herein as a convenient means of distinguishing between two or more elements or instances of an element. Thus, a reference to first and second elements does not mean that only two elements can be employed, or that the first element must precede the second element in some manner.

Additionally, a person having ordinary skill in the art would understand that information and signals can be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits and symbols, for example, which may be referenced in the above description can be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

A person of ordinary skill in the art would further appreciate that any of the various illustrative logical blocks, modules, processors, means, circuits, methods and functions described in connection with the aspects disclosed herein can be implemented by electronic hardware (e.g., a digital implementation, an analog implementation, or a combination of the two) , firmware, various forms of program or design code incorporating instructions (which can be referred to herein, for convenience, as “software” or a “software module) , or any combination of these techniques. To clearly illustrate this interchangeability of hardware, firmware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware, firmware or software, or a combination of these techniques, depends upon the particular application and design constraints imposed on the overall system. Skilled artisans can implement the described functionality in various ways for each particular application, but such implementation decisions do not cause a departure from the scope of the present disclosure.

Furthermore, a person of ordinary skill in the art would understand that various illustrative logical blocks, modules, devices, components and circuits described herein can be implemented within or performed by an integrated circuit (IC) that can include a general purpose processor a digital signal processor (DSP) , an application specific integrated circuit (ASIC) , a field programmable gate array (FPGA) or other programmable logic device, or any combination thereof. The logical blocks, modules, and circuits can further include antennas and/or transceivers to communicate with various components within the network or within the device. A general purpose processor can be a microprocessor but in the alternative, the processor can be any conventional processor controller, or state machine. A processor can also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other suitable configuration to perform the functions described herein.

If implemented in software, the functions can be stored as one or more instructions or code on a computer-readable medium. Thus, the steps of a method or algorithm disclosed herein can be implemented as software stored on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that can be enabled to transfer a computer program or code from one place to another. A storage media can be any available media that can be accessed by a computer. By way of example, and not limitation, such computer-readable media can include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store desired program code in the form of instructions or data structures and that can be accessed by a computer.

In this document, the term “module” as used herein, refers to software, firmware, hardware, and any combination of these elements for performing the associated functions described herein. Additionally, for purpose of discussion, the various modules are described as discrete modules; however, as would be apparent to one of ordinary skill in the art, two or more modules may be combined to form a single module that performs the associated functions according to arrangements of the present solution.

Additionally, memory or other storage, as well as communication components, may be employed in arrangements of the present solution. It will be appreciated that, for clarity purposes, the above description has described arrangements of the present solution with reference to different functional units and processors. However, it will be apparent that any suitable distribution of functionality between different functional units, processing logic elements or domains may be used without detracting from the present solution. For example, functionality illustrated to be performed by separate processing logic elements, or controllers, may be performed by the same processing logic element, or controller. Hence, references to specific functional units are only references to a suitable means for providing the described functionality, rather than indicative of a strict logical or physical structure or organization.

Various modifications to the implementations described in this disclosure will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other implementations without departing from the scope of this disclosure. Thus, the disclosure is not intended to be limited to the implementations shown herein, but is to be accorded the widest scope consistent with the novel features and principles disclosed herein, as recited in the claims below.

Claims

A wireless communication method, comprising:

receiving, by a user device, information from a network node through a signaling; and

performing, by the user device according to the received information, related operation for one or multiple points or point groups or point sets.
The method of claim 1, wherein the information includes at least one of:

one or multiple or one or multiple pairs Transmission Configuration Indicator (TCI) state indexes or identifications;

TCI state indication or identification;

Timing Advance (TA) information;

an identification;

one or multiple indications or identifications to trigger Tracking Reference Signal (TRS) tracking and/or indicate related resource;

a TRS tracking operation;

one or multiple indications or identifications to trigger Channel State Information (CSI) acquisition and/or indicate related resource;

a CSI acquisition operation;

one or multiple indications or identifications to trigger TA acquisition and/or indicate related resource;

a TA acquisition operation;

one or multiple indications or identifications to trigger Sounding Reference Signal (SRS) transmission and/or indicate related SRS resource;

an SRS transmission;

one or multiple indications or identifications to trigger DL synchronization;

one or multiple indications or identifications to trigger and/or activate or deactivate one or multiple TCI states;

resource information;

one or multiple indications or identifications of at least one of a cell, a Component Carrier (CC) , a Transmit/Receive Point (TRP) , or a panel;

one or multiple indications or identifications of a cell, a CC, a TRP, or a panel list or a group; or

one or multiple indications or identifications to activate or deactivate a cell, a CC, a TRP, a panel, a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels.
The method of claim 2, wherein the identification is used for indicating whether at least one of the information received by user device can be applied for a cell, a CC, a TRP, a panel, a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels.
The method of claim 2, wherein the TCI state indication or identification can be one TCI state index or a pair TCI state index, a set of TCI state, or a set of TCI state pair.
The method of claim 1, wherein the one or multiple points include at least one of: a cell, a CC, a TRP, a panel, a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels.
The method of claim 1, wherein the received information can be configured to at least one of:

determine whether one or multiple Transmission Configuration Indicator (TCI) states can be applied for the one or multiple points, the point groups, or the point sets;

determine whether Timing Advance (TA) information can be applied for the one or multiple points, the point groups, or the point sets;

determine whether received information can be applied for the one or multiple points, the point groups, or the point sets;

determine whether to trigger Tracking Reference Signal (TRS) tracking and/or indicate related resource for the one or multiple points, the point groups, or the point sets;

determine whether to perform TRS tracking for the one or multiple points, the point groups, or the point sets;

determine whether to trigger Channel State Information (CSI) acquisition and/or indicate related resource for the one or multiple points, the point groups, or the point sets;

determine whether to perform CSI acquisition for the one or multiple points, the point groups, or the point sets;

determine whether to trigger TA acquisition and/or indicate related resource for the one or multiple points, the point groups, or the point sets;

determine whether to perform TA acquisition operation for the one or multiple points, the point groups, or the point sets;

determine whether to trigger Sounding Reference Signal (SRS) transmission and/or indicate related SRS resource for the one or multiple points, the point groups, or the point sets;

determine whether to perform SRS transmission for the one or multiple points, the point groups, or the point sets;

determine whether to trigger DL synchronization for the one or multiple points, the point groups, or the point sets;

determine whether to trigger and/or activate or deactivate one or multiple TCI states for the one or multiple points, the point groups, or the point sets;

determine resource information to transmit or receive information for the one or multiple points, the point groups, or the point sets;

determine information of a cell, a CC, a TRP, or a panel;

determine the information of a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels; or

determine whether to activate or deactivate a cell, a CC, a TRP, a panel, a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels.
The method of any of claims 1 to 6, wherein if one TCI state indication, one index, or one identification of TCI state is received by the user device, comprises at least one of the following:

the TCI state corresponding to the TCI state indication, index, and/or identification of TCI state is applied for a cell, a CC, a TRP, or a panel corresponding to an index or identification of the cell, the CC, the TRP, or the panel;

the TCI state is applied for a cell, a CC, a TRP, or a panel;

the TCI state corresponding to TCI state indication, index, and/or identification of TCI state is applied for a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels corresponding to an index or identification of the list or group of cells, the list or group of CCs, the list or group of TRPs, or the list or group of panels;

the TCI state is applied for a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels;

the TCI state corresponding to TCI state indication, index, and/or identification of TCI state, or TCI state is applied for a cell, a CC, a TRP, or a panel corresponding to an index or identification of the cell, the CC, the TRP, or the panel associated with the TCI state;

the TCI state is applied for a cell, a CC, a TRP, or a panel associated with the TCI state;

the TCI state corresponding to TCI state indication, index, and/or identification of TCI state or TCI state is applied for a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels corresponding to an index or identification of the list or group of cells, the list or group of CCs, the list or group of TRPs, or the list or group of panels including or associated with a cell, a CC, a TRP, or a panel associated with the TCI state and/or a cell, CC, TRP, or panel;

the TCI state is applied for a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels including or associated with a cell, a CC, a TRP, or a panel associated with or where is configured the TCI state;

the TCI state is applied for a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels including or associated with a cell, a CC, a TRP, or a panel;

the TCI state corresponding to TCI state indication, index, and/or identification of TCI state or TCI state is applied for a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels corresponding to an index or identification of the list or group of cells, the list or group of CCs, the list or group of TRPs, or the list or group of panels associated with the TCI state;

the TCI state is applied for a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels associated with the TCI state;

the TCI state corresponding to TCI state indication, index, and/or identification of TCI state or TCI state is applied for a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels corresponding to an index or identification of the list or group of cells, the list or group of CCs, the list or group of TRPs, or the list or group of panels including or associated with a cell, a CC, a TRP, or a panel corresponding to the index or identification of the cell, the CC, the TRP, or the panel;

the TCI state is applied for a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels including or associated with a cell, a CC, a TRP, or a panel corresponding to an index or identification of the cell, the CC, the TRP, or the panel; or

the TCI state is applied for a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels if an identification is configured or indicated, or the identification is configured or indicated as “enable” .
The method of any of claims 1 to 6, wherein if multiple TCI states, multiple indexes of TCI states, or multiple identifications of TCI states are received by the user device, comprises at least one of the following:

each of the TCI states is applied for a cell, a CC, a TRP, or a panel within a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels;

each of the TCI states is applied for a subset of cells, a subset of CCs, a subset of TRPs, or a subset of panels within a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels;

the TCI states are applied for a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels; or

the TCI states are applied for a cell, a CC, a TRP, or a panel within a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels.
The method of any of claims 1 to 7, wherein if a TCI state is absent for a cell, a CC, a TRP, or a panel within a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels, or TCI state cannot be shared for a cell, a CC, a TRP, or a panel within a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels, or for a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels, or an identification is not configured or indicated, or the identification is configured or indicated as “disable” , comprises at least one of the following:

the user device can apply a TCI state from a reference cell, a reference CC, a reference TRP, a reference panel, a reference list or group of cells, a reference list or group of CCs, a reference list or group of TRPs, or a reference list or group of panels;

the user device can apply a TCI state that is the same as a TCI state index or identification from a reference cell, a reference CC, a reference TRP, a reference panel, a reference list or group of cells, a reference list or group CCs, a reference list or group TRPs, or a reference list or group panels;

the user device can apply a TCI state that is associated with an RS index included in the TCI state from a reference cell, a reference CC, a reference TRP, a reference panel, a reference list or group of cells, a reference list or group CCs, a reference list or group TRPs, or a reference list or group panels;

the user device can apply a TCI state associated with an RS index that is QCLed with an RS index included in the TCI state from a reference cell, a reference CC, a reference TRP, a reference panel, a reference list or group of cells, a reference list or group of CCs, a reference list or group of TRPs, or a reference list or group of panels;

the user device can apply an RS index included in a TCI state from a reference cell, a reference CC, a reference TRP, a reference panel, a reference list or group of cells, a reference list or group of CCs, a reference list or group of TRPs, or a reference list or group of panels;

the user device can apply an RS index from a reference cell, a reference CC, a reference TRP, a reference panel, a reference list or group of cells, a reference list or group of CCs, a reference list or group of TRPs, or a reference list or group of panels;

the user device can apply an RS index that is the same as an RS index included in a TCI state from a reference cell, a reference CC, a reference TRP, a reference panel, a reference list or group of cells, a reference list or group of CCs, a reference list or group of TRPs, or a reference list or group of panels;

the user device can apply an RS index that is the same as an RS index from a reference cell, a reference CC, a reference TRP, a reference panel, a reference list or group of cells, a reference list or group of CCs, a reference list or group of TRPs, or a reference list or group of panels;

the user device can apply an RS index that is QCLed with ab RS index included in a TCI state from a reference cell, a reference CC, a reference TRP, a reference panel, a reference list or group of cells, a reference list or group of CCs, a reference list or group of TRPs, or a reference list or group of panels;

the user device can apply an RS index that is QCLed with an RS index from a reference cell, a reference CC, a reference TRP, a reference panel, a reference list or group of cells, a reference list or group of CCs, a reference list or group of TRPs, or a reference list or group of panels; or

the user device can apply one or more the indicated TCI states included or indicated in the received information.
The method of claim 9, wherein the reference cell, the reference CC, the reference TRP, or the reference panel is a cell, CC, TRP, or panel associated with the TCI state or the information received by the user device; or the reference list or group of cells, the reference list or group of CCs, the reference list or group of TRPs, or the reference list or group of panels is a list or group of cells, a list or group of CCs, a list or group of TRPs, or a list or group of panels including or associated with at least one cell, CC, TRP, or panel associated with the TCI state or the information received by the user device.
The method of claim 1, wherein at least one of a number of the point, the point groups, or the point sets, a number of TCI states, a number of TA, a number of performing TRS tracking, a number of point or point groups where TRS tracking is performed, a number of performing CSI acquisition, a number of point or point groups where CSI acquisition is performed, a number of performing TA acquisition, a number of point or point groups where TA acquisition is performed, a number of performing SRS transmission, a number of point or point groups where SRS transmission is performed, a number of triggering and/or activating or deactivating TCI state, or a number of triggering and/or activating or deactivating point or point groups or point sets is determined based on a capability of the user device, or based on a configuration.
The method of claim 1, wherein the signaling can be at least one of DCI signaling, MAC CE signaling, or RRC signaling.
The method of any claim 1, or 12, wherein the signaling is used to indicate or convey information for point or point group switching, or simultaneously information update or application.
A wireless communications apparatus comprising a processor and a memory, wherein the processor is configured to read code from the memory and implement a method recited in any of claims 1 to 13.
A computer program product comprising a computer-readable program medium code stored thereupon, the code, when executed by a processor causing the processor to implement a method recited in any of claims 1 to 13.