User equipment, processor, and computer-readable medium for applying TCI state changes to multiple CORESETs

Abstract

A UE is configured to perform a transmission configuration indicator (TCI) state change for one or more control resource sets (CORESETs). The UE has one or more processors configured to: receive an identification of a group of control resource sets (CORESETs) from a base station, the CORESET group including a plurality of CORESETs; receive an indication of a transmission configuration indicator (TCI) state change for one or more CORESETs in the CORESET group via a medium access control (MAC) control element (CE) from the base station; and apply the TCI state change for one or more CORESETs in the CORESET group based at least on the indication.

Description

Background Art

[0001] The Transmission Configuration Indicator (TCI) state contains parameters used to configure the quasi-collocation (QCL) relationship between one or more downlink (DL) reference signals (DLRS) and corresponding antenna ports. TCI state changes can be implemented by the network and indicated to user equipment (UE) in the network to assist in channel estimation. Summary of the Invention

[0002] Some example embodiments relate to a user equipment (UE) having one or more processors and a transceiver communicatively connected to the one or more processors. The one or more processors are configured to: receive an identification of a group of control resource sets (CORESETs) from a base station, the CORESET group including a plurality of CORESETs; receive an indication of a transmission configuration indicator (TCI) state change for one or more of the plurality of CORESETs in the CORESET group from the base station via a medium access control (MAC) control element (CE); and apply the TCI state change for the one or more of the plurality of CORESETs in the CORESET group based at least on the indication.

[0003] Other exemplary embodiments relate to a user equipment (UE) having one or more processors and a transceiver communicatively connected to the one or more processors. The one or more processors are configured to: receive a configuration of a list of component carriers (CCs) with common beam management (CBM) from a network; receive an indication of a transmission configuration indicator (TCI) state change of a physical downlink shared channel (PDSCH) or a control resource set (CORESET) beam change of a physical downlink control channel (PDCCH) from the network via a medium access control (MAC) control element (CE), the MAC CE including an indicator of the CC; and apply the TCI state change of the PDSCH or the CORESET beam change of the PDCCH to each CC in a CC list including the indicated CC.

[0004] Other exemplary embodiments relate to a user equipment (UE) having one or more processors and a transceiver communicatively connected to the one or more processors. The one or more processors are configured to: receive configuration information from a base station via one of a PDCCH medium access control (MAC) control element (CE) or a PDSCH MAC CE, the configuration information indicating whether to apply a simultaneous transmission configuration indicator (TCI) state change for a physical downlink control channel (PDCCH) and a physical downlink shared channel (PDSCH); and apply a (TCI) state change for one or both of the PDCCH and the PDSCH based at least on the configuration information. BRIEF DESCRIPTION OF THE DRAWINGS

[0005] Figure 1 Network arrangements according to various exemplary embodiments are shown.

[0006] Figure 2 An exemplary UE according to various exemplary embodiments is shown.

[0007] Figure 3 Exemplary network cells are shown according to various exemplary embodiments.

[0008] Figure 4a A Medium Access Layer Control Element (MAC-CE) for configuring a Physical Downlink Control Channel (PDCCH) Transmission Configuration Indicator (TCI) is shown according to various exemplary embodiments.

[0009] Figure 4b A MAC CE for configuring a physical downlink control channel (PDCCH) TCI is shown according to various exemplary embodiments, the PDCCH TCI including a field for indicating whether the MAC CE is for a TCI update for a group of core resource sets (CORESETs) or for a TCI update for a single CORESET.

[0010] Figure 5 Methods for configuring the TCI state of a CORESET group using a single PDCCH MAC CE according to various exemplary embodiments are shown.

[0011] Figure 6a Methods for configuring TCI states for a list of component carriers (CCs) with common beam management (CBM) according to various exemplary embodiments are shown.

[0012] Figure 6b A bitmap included in an uplink (UL) MAC CE is shown, the bitmap comprising 32 fields Ci for indicating a preferred configuration of a CC list to the network, according to various exemplary embodiments.

[0013] Figure 7a Methods for configuring TCI states for downlink channels including both a physical downlink shared channel (PDSCH) and a PDDCH using a single MAC CE according to various exemplary embodiments are shown.

[0014] Figure 7b PDSCH MAC CE for TCI activation according to various exemplary embodiments is shown.

[0015] Figure 7cA modified PDSCH MAC CE for TCI activation according to various exemplary embodiments is shown. DETAILED DESCRIPTION

[0016] The exemplary embodiments may be further understood with reference to the following description and associated drawings, wherein similar elements bear the same reference numerals. The exemplary embodiments describe methods for configuring the state of a transmission configuration indicator (TCI) on multiple control resource sets (CORESETs) of a physical downlink control channel (PDCCH), multiple component carriers (CCs), and / or on both the PDCCH and the physical downlink shared channel (PDSCH). The exemplary embodiments described herein involve grouping the aforementioned CORESETs, CCs, or downlink channels so that a TCI state change is applied to each of these items in a specific group.

[0017] Network / Device

[0018] Figure 1 An exemplary network arrangement 100 according to various exemplary embodiments is shown. The exemplary network arrangement 100 includes a user equipment (UE) 110. Those skilled in the art will appreciate that a UE may be any type of electronic component configured to communicate via a network, such as a mobile phone, tablet, smartphone, phablet, embedded device, wearable device, Cat-M device, Cat-M1 device, MTC device, eMTC device, other types of Internet of Things (IoT) devices, etc. It will also be appreciated that an actual network arrangement may include any number of UEs used by any number of users. Therefore, for illustrative purposes, an example with a single UE 110 is provided.

[0019] UE 110 can communicate directly with one or more networks. In the example of network configuration 100, the networks with which UE 110 can wirelessly communicate are 5G NR radio access network (5G NR-RAN) 120, LTE radio access network (LTE-RAN) 122, and wireless local area network (WLAN) 124. Therefore, UE 110 can include a 5G NR chipset for communicating with 5G NR-RAN 120, an LTE chipset for communicating with LTE-RAN 122, and an ISM chipset for communicating with WLAN 124. However, UE 110 can also communicate with other types of networks (e.g., legacy cellular networks), and UE 110 can also communicate with a network via a wired connection. With respect to the exemplary embodiment, UE 110 can establish a connection with 5G NR RAN 122.

[0020] 5G NR-RAN 120 and LTE-RAN 122 may be part of cellular networks that may be deployed by cellular providers (e.g., Verizon, AT&T, Sprint, T-Mobile, etc.). These networks 120, 122 may include, for example, cells or base stations (NodeB, eNodeB, HeNB, eNBS, gNB, gNodeB, macrocell base stations, microcell base stations, small cell base stations, femtocell base stations, etc.) configured to send and receive traffic from UEs equipped with appropriate cellular chipsets. WLAN 124 may include any type of wireless local area network (WiFi, hotspot, IEEE 802.11x network, etc.).

[0021] UE 110 may connect to the 5G NR-RAN via at least one of next-generation nodeB (gNB) 120A and / or gNB 120B. gNBs 120A and 120B may be configured with the necessary hardware (e.g., antenna arrays), software, and / or firmware to perform massive multiple-input, multiple-output (MIMO) functionality. Massive MIMO may refer to a base station configured to generate multiple beams for multiple UEs. Reference to two gNBs 120A and 120B is for illustrative purposes only. The exemplary embodiments are applicable to any suitable number of gNBs.

[0022] In addition to networks 120, 122, and 124, network arrangement 100 includes a cellular core network 130, the Internet 140, an IP Multimedia Subsystem (IMS) 150, and a network services backbone 160. Cellular core network 130 can be considered an interconnected collection of components that manage the operation and traffic of a cellular network. Cellular core network 130 also manages traffic flowing between the cellular network and the Internet 140. IMS 150 can generally be described as an architecture for delivering multimedia services to UE 110 using IP protocols. IMS 150 can communicate with cellular core network 130 and the Internet 140 to provide multimedia services to UE 110. Network services backbone 160 communicates directly or indirectly with the Internet 140 and cellular core network 130. Network services backbone 160 can generally be described as a set of components (e.g., servers, network storage arrangements, etc.) that implement a suite of services that can be used to extend the functionality of UE 110 to communicate with various networks.

[0023] Figure 2 An exemplary UE 110 is shown according to various exemplary embodiments. Figure 110. The UE 110 may represent any electronic device and may include a processor 205, a memory arrangement 210, a display device 215, an input / output (I / O) device 220, a transceiver 225, and other components 230. The other components 230 may include, for example, an audio input device, an audio output device, a battery providing a limited power source, a data acquisition device, a port for electrically connecting the UE 110 to other electronic devices, sensors for detecting conditions of the UE 110, and the like.

[0024] The processor 205 may be configured to execute multiple engines of the UE 110. For example, the engines may include a TCI state change engine 235. The TCI state change engine 235 may perform operations including applying a TCI state change indicated by the network. In one embodiment, the TCI state change engine 235 may provide the network with a set of component carriers (CCs) that are subject to common beam management (CBM), so that when the network indicates a TCI state change for one of the CCs, the TCI state change may be applied to each CC in the set.

[0025] The engine described above as an application (e.g., a program) executed by the processor 205 is merely exemplary. The functionality associated with the engine may also be represented as a standalone integrated component of the UE 110, or may be a modular component coupled to the UE 110, such as an integrated circuit with or without firmware. For example, an integrated circuit may include input circuitry for receiving signals and processing circuitry for processing signals and other information. The engine may also be embodied as one application or multiple separate applications. In addition, in some UEs, the functionality described for the processor 205 is shared between two or more processors, such as a baseband processor and an application processor. The exemplary embodiments may be implemented in any of these or other configurations of the UE.

[0026] The memory 210 may be a hardware component configured to store data related to operations performed by the UE 110. The display device 215 may be a hardware component configured to display data to a user, and the I / O device 220 may be a hardware component that enables user input. The display device 215 and the I / O device 220 may be separate components or may be integrated together (such as a touch screen). The transceiver 225 may be a hardware component configured to establish a connection with the 5G-NR RAN 120, the LTE RAN 122, etc. Therefore, the transceiver 225 can operate on a variety of different frequencies or channels (e.g., a continuous frequency group).

[0027] Figure 3An exemplary network cell, in this case gNB 120A, is shown in accordance with various exemplary embodiments. As described above with respect to UE 110, gNB 120A may represent a serving cell for UE 110. gNB 120A may represent any access node of a 5G NR network through which UE 110 may establish a connection and manage network operations. Figure 3 The gNB 120A shown may also represent gNB120B.

[0028] The gNB 120A may include a processor 305, a memory arrangement 310, an input / output (I / O) device 320, a transceiver 325, and other components 330. The other components 330 may include, for example, an audio input device, an audio output device, a battery, a data acquisition device, ports for electrically connecting the gNB 120A to other electronic devices, and the like.

[0029] The processor 305 may be configured to execute multiple engines of the gNB 120A. For example, the engines may include a TCI state change engine 335. The TCI state change engine 335 may perform operations including indicating a TCI state change to a UE, as described in detail below. The TCI state change engine 335 may also perform operations including configuring a CORESET group and configuring a list of CCs to which a single TCI change may apply.

[0030] The engines described above, each as an application (e.g., a program) executed by processor 305, are exemplary only. The functionality associated with the engines may also be represented as a standalone, integrated component of gNB 120A, or as a modular component coupled to gNB 120A, such as an integrated circuit with or without firmware. For example, an integrated circuit may include input circuitry for receiving signals and processing circuitry for processing signals and other information. Furthermore, in some gNBs, the functionality described for processor 305 is split among multiple processors (e.g., a baseband processor, an application processor, etc.). The exemplary embodiments may be implemented in any of these or other configurations of the gNB.

[0031] Memory 310 may be a hardware component configured to store data related to operations performed by UE 110, 112. I / O device 320 may be a hardware component or port that enables a user to interact with gNB 120A. Transceiver 325 may be a hardware component configured to exchange data with UE 110, 112 and any other UE in system 100, for example, when gNB 120A serves as a PCell or SCell for either or both UEs 110, 112. Transceiver 325 may operate on a variety of different frequencies or channels (e.g., a set of contiguous frequencies). Thus, transceiver 325 may include one or more components (e.g., radio components) to enable data exchange with various networks and UEs.

[0032] Configuring Multiple CORESET IDs on a Single MAC-CE

[0033] The transmission configuration indicator (TCI) state contains parameters for configuring the quasi-co-location (QCL) relationship between one or more downlink (DL) reference signals (DLRS) and corresponding antenna ports, such as the demodulation reference signal (DMRS) port of the physical downlink shared channel (PDSCH), the DMRS port of the physical downlink control channel (PDCCH), or the channel state indicator reference signal (CSI-RS) port of the CSI-RS resource set. Two quasi-co-located signals experience very similar channel conditions, so that determining the channel characteristics of one signal will substantially help the channel estimation of the other signal. The user equipment (UE) can be configured with a list of up to M TCI state configurations within the higher layer parameters for decoding the PDSCH based on the detected PDCCH with downlink control information (DCI) for the UE and a given serving cell, where M depends on the UE's capabilities. The TCI state can be transmitted from the network to the UE in a medium access layer (MAC) control element (CE), a DCI message, or a radio resource control (RRC) activation command.

[0034] As defined in NR, a control resource set (CORESET) is a set of resource element groups (REGs) (each REG includes a resource block in the frequency domain and one OFDM symbol in the time domain) within which the UE attempts to blindly decode downlink control information (DCI) from the PDCCH. A CORESET can be considered as a set of physical resources, such as a specific area on the NR downlink resource grid, and a set of parameters used to carry the PDCCH / DCI.

[0035] In Rel-15, DL TCI is configured as follows. For the PDCCH, DL TCI is configured based on the CORESET via MAC-CE. For example, one CORESET is configured per MAC-CE. A maximum of 16 CORESETs can be configured for the PDCCH, but the actual number is typically much smaller. For the PDSCH, RRC can configure up to 64 TCI states.

[0036] In Rel-16, DL TCI configuration is enhanced. One MAC CE can be used to update the PDSCH TCI status list of an indicated BWP in multiple component carriers (CCs). One MAC CE can also be used to update the TCI of a CORESET (PDCCH) with the same ID as the CC list. The CC list is configured by higher-layer signaling, and up to two CC lists can be configured. CC lists should be orthogonal (for example, a CC cannot belong to multiple CC lists).

[0037] In exemplary embodiments, further enhancements are made to improve DL TCI configuration. In some exemplary embodiments, a single MAC-CE configures a TCI state change for each of a plurality of CORESET IDs included in a CORESET group. In other exemplary embodiments, component carriers (CCs) subject to common beam management (CBM) are grouped so that a network-indicated TCI state change or CORESET beam change is applied to each CC in the group. In still other exemplary embodiments, a single MAC-CE configures a TCI state change for both the PDSCH and the PDCCH.

[0038] Figure 4a A medium access layer control element (MAC-CE) 400 for configuring a physical downlink control channel (PDCCH) transmission configuration indicator (TCI) is shown. The PDCCH MAC-CE 400 includes a field 402 for indicating a serving cell ID (5 bits), a field 404 for indicating a control resource set (CORESET) ID (4 bits), and a field 406 for indicating a TCI state ID (7 bits).

[0039] The PDCCH MAC-CE 400 is currently used to configure the beams of a single CORESET. Within a single component carrier (CC), up to 16 different CORESETs can be configured via MAC-CE (each CORESET configured by a separate MAC-CE), however, the typical number of configured CORESETs is typically smaller. Overhead and latency can be reduced by grouping CORESETs and indicating TCI state changes to the group.

[0040] Figure 5 A method 500 for configuring the TCI state of a CORESET group using a single PDCCH MAC CE according to various exemplary embodiments is shown. The CORESET group may be configured using the existing MAC CE 400, or a modified MAC CE 450, which will be described in detail below, may be used.

[0041] In 505, the gNB configures N CORESET groups that can be used by the UE. The CORESETs within a group may be selected based on the transmission and reception points (TRPs) using the CORESETs, or may be selected based on other considerations. The number of groups (N) may be 2, 4, or another number. In some exemplary embodiments, the CORESET groups may be explicitly configured via RRC signaling. In other exemplary embodiments, the Rel-16 CORESETPoolIndex configuration may be used. Each CORESET group may be configured with the same number of CORESET IDs, or the number of CORESET IDs may differ across CORESET groups. A CORESET ID may belong to multiple CORESET groups, or each CORESET ID may belong to only a single CORESET group.

[0042] In 510, the gNB indicates the CORESET group to the UE via a MAC CE. In a first option, the CORESET group ID may be directly indicated in the existing MAC-CE 400. In a second option, a single CORESET ID may be indicated in the MAC-CE 400, and the group to which the indicated CORESET ID belongs will be configured with the TCI state indicated in the MAC-CE 400. In this option, each CORESET ID belongs to only a single CORESET group.

[0043] In a third option, the units of the MAC-CE 400 can be reused to indicate whether the TCI update applies to a group of CORESETs or to a single CORESET. The MAC CE 400 discussed above includes 7 bits for the TCI state ID. However, because the maximum number of TCI states that can be configured for the PDCCH is 64, only 6 bits are required to indicate the TCI state ID. The MAC CE 400 includes only 7 bits for the TCI state ID so that the rows of the MAC CE 400 are octet-aligned. Therefore, by truncating one of these bits from the TCI state ID, the MAC-CE 400 can be modified into the MAC CE 450 described below to include an additional field "C" that indicates whether the TCI update applies to a group of CORESETs or to a single CORESET.

[0044] Figure 4b A MAC CE 450 for configuring PDCCH TCI is shown, including a field 458 for indicating whether the MAC CE is for a TCI update for a group of CORESETs or a TCI update for a single CORESET. Similar to MAC-CE 400, MAC-CE 450 includes a field 452 for indicating a serving cell ID (5 bits) and a field 454 for indicating a control resource set (CORESET) ID (4 bits). In this embodiment, field 456 for indicating a TCI state ID includes 6 bits, and field 458 for indicating the nature of the TCI configuration ("C") is a single bit. For example, if C=1, the TCI update applies to a CORESET group, and CORESET ID field 454 includes the ID of the CORESET group. If C=0, the TCI update applies to a single CORESET, and CORESET ID field 454 applies to a single CORESET.

[0045] Multiple CCs configured on a single MAC-CE

[0046] Figure 6a A method 600 for configuring TCI states for a list of component carriers (CCs) with common beam management (CBM) according to various exemplary embodiments is shown. CBM processing for a group of CCs involves using only one beam across all CBM CCs. Therefore, the same TCI state configuration can be used across all CBM CCs. This functionality is applicable to all intra-band CA scenarios and is typically used for inter-band CA within similar frequency ranges, such as low-low, mid-mid, or high-high band combinations. Independent beam management processing is typically used for inter-band CA within different frequency ranges, such as low-mid band combinations.

[0047] In 605, the gNB configures a CC list for the UE that includes CBM CCs, such as CCs using a common beam. In a first option, the CC list is configured to include all CCs for which the UE can perform CBM. However, in another embodiment described below, the network may make an error when configuring the CC list, for example, by failing to include one of the CBM CCs.

[0048] In 610, the gNB indicates the TCI state change / activation of PDSCH or the CORESET beam change of PDCCH via MAC CE. The MAC CE may be PDCCH MAC CE 400 or PDSCH MAC CE 750 (hereinafter referred to as Figure 7bDetailed Description) also includes a serving cell ID field for indicating the CC. In 615, the UE implements a PDSCH TCI state change or a PDCCH CORESET beam change for the CC indicated in the MAC CE and any CCs that share a CBM with the indicated CC based on the CC list. If the UE learns of a CBM CC that is not included in the list, the UE may implement the change for the missing CC.

[0049] The UE may indicate the preferred configuration of the CC list to the network in 620. The UE may know which CCs share the CBM and may indicate the configuration in an uplink (UL) MAC CE. Figure 6b A bitmap 650 included in the UL MAC CE is shown, which includes 32 fields Ci for indicating the preferred configuration of the CC list to the network. Currently, NR allows up to 32 CCs to be configured in a carrier aggregation configuration. Each field Ci in the bitmap 650 corresponds to the serving cell ID "i" of the CC, i=0,1,2,...30,31. When Ci=0, the serving cell "i" belongs to CC list 0, and when Ci=1, the serving cell "i" belongs to CC list 1. Therefore, by indicating the bit for each serving cell, the UE indicates two CC lists to the network. As mentioned above, this step may be particularly suitable for scenarios where the network may make an error when configuring the CC list. For example, the network may have configured 4 CCs, but the CC list is only configured with 3 CCs. Instead of resolving this discrepancy on the network side, the UE provides the CC list to the network, which groups the CCs more appropriately.

[0050] If more than two CC lists are to be indicated, the bitmap 650 may extend each bit field so that each Ci contains 2 bits. In the extended bitmap, four CC lists may be indicated. The UE may request an update of the preferred CC list via a Scheduling Request (SR) or an existing Physical Uplink Shared Channel (PUSCH) grant.

[0051] A single MAC-CE configures PDCCH and PDSCH

[0052] Figure 7a A method 700 is shown for configuring TCI states for downlink channels including both PDSCH and PDDCH using a single MAC CE according to various exemplary embodiments. In some embodiments, only a single active TCI may be supported for DL ​​channels including control (PDCCH) and data (PDSCH). The network, the UE, or both the network and the UE may be subject to such limitations. In this case, to minimize network overhead and latency, both the PDCCH beam and the PDSCH beam may be changed by a single MAC CE.

[0053] In 705, the gNB configures the UE so that the TCI states of the PDCCH and PDSCH can be changed simultaneously. In a first option, similar to the third option of the first exemplary embodiment discussed above, the units of the existing PDCCH MAC-CE 400 are reused so that a new area including the units is configured in the MAC CE 450. In this first option, a new area (corresponding to area 458 ("C") of the MAC CE 450) is used to indicate the configuration mode, such as whether the TCI of the PDSCH and PDCCH are to be changed simultaneously or whether only the TCI of the PDCCH is to be changed. For example, when C=1, the TCI can be changed for both channels simultaneously. When C=0, only the TCI of the PDCCH is changed. Alternatively, these two modes can be semi-statically configured by RRC and the MAC CE 400 can be used.

[0054] In the second option, the MAC CE may be activated using the PDSCH TCI and the RRC may configure one of two modes. Figure 7b A PDSCH MAC CE 750 for TCI activation is shown. The PDSCH MAC CE 750 includes a field 752 for a CORESET pool index (1 bit), a field 754 for a serving cell ID (5 bits), a field 756 for a bandwidth part (BWP) ID (2 bits), and N fields 758 for PDSCH TCI status (Ti) (each field is 1 bit, where the TCI status of the position mapped to the bit is activated / deactivated based on the value of the bit). Similar to the above, these two modes can be semi-statically configured by RRC. The PDSCH MAC CE 750 applies to all CORESETs configured with the same CORESETPoolIndex.

[0055] In a third option, the PDSCH MAC CE 750 may be modified. Figure 7c A PDSCH MAC CE 760 for TCI activation is shown, which is modified to include, in addition to a CORESET pool ID field 762, a serving cell ID field 764, a BWP ID 766, and N fields 758 for TCI status, a field 770 for CORESET ID, a field 772 "C1" for switching between activating all CORESETs within a CORESET group or activating only the CORESET indicated by the CORESET ID, and a field 774 "C0" for switching between activating only PDSCH or activating both PDCCH and PDSCH. Field "R" is a reserved bit.

[0056] In 710, the gNB indicates a simultaneous change in the TCI state of the PDSCH and PDCCH. If the first option discussed above is used (i.e., using the modified PDCCH MAC CE 450), the C field 458 may be indicated as "1" to change the TCI of the PDSCH and PDCCH simultaneously. Alternatively, if the unmodified PDCCH MAC CE 400 is used, the RRC may configure simultaneous TCI state changes. If the second option discussed above is used (e.g., using the unmodified PDSCH MAC CE 750), the RRC may configure simultaneous TCI state changes. When simultaneous changes are configured, only one of the Ti fields 758 is allowed to be indicated as "1." If the third option discussed above is used (e.g., using the modified PDSCH MAC CE 760), the C0 field 764 indicates simultaneous changes. In this modified PDSCH MAC CE 760, a maximum of eight Tis are allowed to be indicated as one.

[0057] Those skilled in the art will appreciate that the exemplary embodiments described above can be implemented with any suitable software configuration or hardware configuration or combination thereof. Exemplary hardware platforms for implementing the exemplary embodiments may include, for example, Intel x86-based platforms with compatible operating systems, Windows OS, Mac platforms and MAC OS, mobile devices with operating systems such as iOS, Android, etc. In other examples, the exemplary embodiments of the above methods may be embodied as a program comprising lines of code stored on a non-transitory computer-readable storage medium, which, when compiled, can be executed on a processor or microprocessor.

[0058] Although this patent application describes various combinations of various embodiments, each with different features, those skilled in the art will understand that any feature of one embodiment may be combined with features of other embodiments in any manner not publicly denied, or with features that are not functionally or logically inconsistent with the operation or described function of the device of the embodiments disclosed herein.

[0059] It is understood that the use of personally identifiable information should be subject to privacy policies and practices that are generally recognized to meet or exceed industry or government requirements for maintaining user privacy. Specifically, personally identifiable information data should be managed and processed to minimize the risk of unintentional or unauthorized access or use, and the nature of authorized use should be clearly stated to users.

[0060] It will be apparent to those skilled in the art that various modifications may be made to the present disclosure without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure is intended to cover modifications and variations of the present disclosure provided that these modifications and variations are within the scope of the appended claims and their equivalents.

Claims

1. A user equipment (UE), comprising: One or more processors configured to: receiving an identifier of a group of control resource sets CORESET from a base station, where the CORESET group includes a plurality of CORESETs; receiving, from the base station via a medium access control element (MAC CE), an indication of a transmission configuration indicator (TCI) state change for one or more CORESETs of the plurality of CORESETs in the CORESET group; as well as When the MAC CE includes a field indicating that the TCI state change applies to the CORESET group and when the MAC CE includes an identifier of one CORESET among the multiple CORESETs in the CORESET group, applying the TCI state change to all CORESETs in the CORESET group to which the one CORESET belongs based on at least the indication; and A transceiver is communicatively connected to the one or more processors.

2. The UE according to claim 1, wherein the CORESET group comprises N CORESET groups, where N represents the number of CORESET groups.

3. The UE according to claim 2, wherein the CORESET belongs to more than one CORESET group among the N CORESET groups or belongs to only one CORESET group among the N CORESET groups.

4. The UE according to claim 2, wherein the N CORESET groups include one of the same CORESET set or different CORESET sets.

5. A processor comprising an integrated circuit, wherein the integrated circuit is configured to: receiving an identifier of a group of control resource sets CORESET from a base station, where the CORESET group includes a plurality of CORESETs; receiving, from the base station via a medium access control element (MAC CE), an indication of a transmission configuration indicator (TCI) state change for one or more CORESETs of the plurality of CORESETs in the CORESET group; as well as When the MAC CE includes a field indicating that the TCI state change applies to the CORESET group and when the MAC CE contains an identifier of one CORESET among the multiple CORESETs in the CORESET group, the TCI state change is applied to all CORESETs in the CORESET group to which the one CORESET belongs based on at least the indication. 6 . The processor according to claim 5 , wherein the CORESET group comprises N CORESET groups, where N represents the number of CORESET groups. 7 . The processor according to claim 6 , wherein a CORESET belongs to more than one CORESET group or only one CORESET group among the N CORESET groups.

8. The processor of claim 6, wherein the N CORESET groups comprise one of the same CORESET set or different CORESET sets.

9. A computer-readable medium comprising instructions that, when executed by a processor, cause the processor to: receiving an identifier of a group of control resource sets CORESET from a base station, where the CORESET group includes a plurality of CORESETs; receiving, from the base station via a medium access control element (MAC CE), an indication of a transmission configuration indicator (TCI) state change for one or more CORESETs of the plurality of CORESETs in the CORESET group; as well as When the MAC CE includes a field indicating that the TCI state change applies to the CORESET group and when the MAC CE contains an identifier of one CORESET among the multiple CORESETs in the CORESET group, the TCI state change is applied to all CORESETs in the CORESET group to which the one CORESET belongs based on at least the indication.

10. The computer-readable medium of claim 9, wherein the CORESET group comprises N CORESET groups, N representing the number of CORESET groups.

11. The computer-readable medium of claim 10, wherein a CORESET belongs to more than one CORESET group or only one CORESET group among the N CORESET groups.

12. The computer-readable medium of claim 10, wherein the N CORESET groups comprise one of the same CORESET set or different CORESET sets.

Images