UE capabilities include

Abstract

This disclosure generally relates to handling transmissions in a wireless cellular access network, and more specifically to a mechanism for sharing user equipment (UE) capabilities. A method for handling transmissions in a wireless cellular access network includes deciding to share at least one capability from at least one first band or cell to at least one second band or cell, and providing capability sharing information to the wireless access network nodes. This provides a flexible mechanism for enabling UE capability sharing, thereby increasing UE capability utilization efficiency.

Description

[Technical Field]

[0001] This disclosure generally relates to handling transmissions in wireless cellular access networks, and more specifically to mechanisms for sharing user equipment (UE) capabilities. [Background technology]

[0002] Based on existing LTE and NR systems, user equipment (UE) (i.e., radio terminal devices) demonstrates its UE capabilities to base stations (i.e., radio network access nodes). Base stations configure and schedule transmissions according to the corresponding UE capabilities. Most UE capabilities are defined per band or per cell. Even if a cell within a band is not activated, configured, or scheduled, the UE cannot share its capabilities with other activated cells within the same or a different band. For example, a basic UE capability is receiving one PDSCH (Physical Downlink Shared Channel) per slot per cell. If a UE is configured with two cells, the UE has the capability to receive one PDSCH per cell, two PDSCHs per slot. However, if one of the cells is deactivated, in existing LTE and NR systems, the UE can still only receive one PDSCH per slot in the activated cell. The UE capability for the other band is wasted. [Overview of the Initiative] [Means for solving the problem]

[0003] This disclosure relates to handling transmissions in a wireless cellular access network, and more specifically, to mechanisms for sharing UE capabilities. Various exemplary embodiments relate, in particular, to novel methods for sharing the UE capabilities of a cell or band that is not activated, configured, or scheduled during a period of time with another cell or band that is activated, configured, or scheduled. According to various embodiments, the novel method can reuse UE capabilities from a cell or band that is not activated, configured, or scheduled during a period of time with another cell or band. As a result, UE capability utilization efficiency can be increased.

[0004] In some exemplary implementations, a method implemented by a wireless terminal device for handling transmissions includes sharing at least one capability from at least one first band or cell to at least one second band or cell, and indicating capability sharing information to a wireless access network node. Indicating capability sharing information to a wireless access network node may include indicating to the wireless access network node support for one band combination including at least one first band and at least one second band. The method may also include receiving a configuration for at least one second band but not for at least one first band from a wireless access network node, and sharing at least one capability from at least one first band to at least one second band.

[0005] In some exemplary implementations, which may be combined with any of the other exemplary implementations disclosed herein, the Method may also include receiving from a radio access network node the configuration of one or more cells in at least one first band and the configuration of one or more cells in at least one second band, determining that all of the one or more cells in at least one first band are to be deactivated, and sharing at least one capability from at least one first band to at least one second band. Similarly, the Method may also include receiving from a radio access network node the configuration of at least one first cell and the configuration of at least one second cell, determining that at least one first cell is to be deactivated, and sharing at least one capability from at least one first cell to at least one second cell, wherein the at least one first cell and at least one second cell are in the same band or two separate bands.

[0006] In some exemplary implementations, which may be combined with any of the other exemplary implementations disclosed herein, the Method may also include receiving from a radio access network node the configuration of one or more cells in at least one first band and the configuration of one or more cells in at least one second band, determining that all of the one or more cells in at least one first band are in a dormant state, and sharing at least one capability from at least one first band to at least one second band. The Method may also include receiving from a radio access network node the configuration of at least one first cell and the configuration of at least one second cell, determining that at least one first cell is in a dormant state, and sharing at least one capability from at least one first cell to at least one second cell, wherein the at least one first cell and at least one second cell are in the same band or two separate bands. The method may also include receiving the configuration of one or more cells in at least one first band and the configuration of one or more cells in at least one second band from a radio access network node, determining that all of the one or more cells in at least one first band are in a discontinuous receive (DRX) off state, and sharing at least one capability from at least one first band to at least one second band. The method may also include receiving the configuration of at least one first cell and the configuration of at least one second cell from a radio access network node, determining that at least one first cell is in a discontinuous receive (DRX) off state, and sharing at least one capability from at least one first cell to at least one second cell, wherein the at least one first cell and at least one second cell are in the same band or two separate bands.

[0007] In some exemplary implementations, which may be combined with any of the other exemplary implementations disclosed herein, the Method may also include receiving from a radio access network node the configuration of one or more cells in at least one first band and the configuration of one or more cells in at least one second band; determining that all of the one or more cells in at least one first band are not scheduled within a given time unit; and sharing at least one capability from at least one first band to at least one second band during that time unit. The Method may also include receiving from a radio access network node the configuration of one or more cells in at least one first band and the configuration of one or more cells in at least one second band; determining that all of the one or more cells in at least one first band are configured as downlinks within a given time unit; and sharing at least one uplink-related capability from at least one first band to at least one second band during that time unit. The method may also include receiving from a radio access network node the configuration of one or more cells in at least one first band and the configuration of one or more cells in at least one second band; determining that all of the one or more cells in at least one first band are configured as uplinks within a given time unit; and sharing at least one downlink-related capability from at least one first band to at least one second band during that time unit.

[0008] In some exemplary implementations, which may be combined with any of the other exemplary implementations disclosed herein, the Method may also include receiving the configuration of at least one first cell and the configuration of at least one second cell from a radio access network node, determining that at least one first cell is not scheduled within a given time unit, and sharing at least one capability from at least one first cell to at least one second cell during that time unit, wherein the at least one first cell and at least one second cell are in the same band or two separate bands. The Method may also include receiving the configuration of at least one first cell and the configuration of at least one second cell from a radio access network node, determining that at least one first cell is configured as a downlink within a given time unit, and sharing at least one uplink-related capability from at least one first cell to at least one second cell during that time unit, wherein the at least one first cell and at least one second cell are in the same band or two separate bands. The method may also include receiving the configuration of at least one first cell and the configuration of at least one second cell from a radio access network node, determining that at least one first cell is configured as an uplink within a given time unit, and sharing at least one downlink-related capability from at least one first cell to at least one second cell during that time unit, wherein the at least one first cell and at least one second cell are in the same band or two separate bands.

[0009] In some exemplary implementations, which may be combined with any of the other exemplary implementations disclosed herein, at least one first band comprises two or more first bands. The method may include receiving from a radio access network node the configuration of one or more cells in two or more first bands and the configuration of one or more cells in at least one second band, determining that all of the one or more cells in two or more first bands are deactivated, and sharing at least one capability from at least one of the two or more first bands to at least one second band. The method may also include determining that all of the one or more cells in two or more first bands are in a dormant state, and sharing at least one capability from at least one of the two or more first bands to at least one second band. The method may also include determining that all of one or more cells in two or more first bands are in a discontinuous receive (DRX) off state, and sharing at least one capability from at least one of the two or more first bands to at least one second band. The method may also include determining that all of one or more cells in two or more first bands are not scheduled within a given time unit, and sharing at least one capability from at least one of the two or more first bands to at least one second band during that time unit.

[0010] In some exemplary implementations, which may be combined with any of the other exemplary implementations disclosed herein, at least one first cell comprises two or more first cells. The method may include receiving from a radio access network node the configuration of two or more first cells and the configuration of at least one second cell, determining that two or more first cells are to be deactivated, and sharing at least one capability from at least one of the two or more first cells to at least one second cell, wherein the two or more first cells and at least one second cell are in the same band or separate bands. The method may also include determining that two or more first cells are to be in a dormant state, and sharing at least one capability from at least one of the two or more first cells to at least one second cell, wherein the two or more first cells and at least one second cell are in the same band or separate bands. The method may also include determining that two or more first cells are in a discontinuous receive (DRX) off state and sharing at least one capability from at least one of the two or more first cells to at least one second cell, wherein the two or more first cells and at least one second cell are in the same or separate bands. The method may also include determining that two or more first cells are not scheduled within a given time unit and sharing at least one capability from at least one of the two or more first cells to at least one second cell during that time unit, wherein the two or more first cells and at least one second cell are in the same or separate bands.

[0011] In some exemplary implementations, which can be combined with any of the other exemplary implementations disclosed herein, the amount of at least one capability from at least one first band or cell is represented as X1, and the amount of the capability of at least one second band or cell without sharing is represented as X2. The method may include sharing at least one capability from at least one first band or cell to at least one second band or cell such that the shared capability of the at least one second band or cell is X, where X = X1 + X2. In some embodiments, the amount of at least one capability from at least one first band or cell and the amount of the capability of at least one second band or cell are the number of physical downlink shared channels (PDSCH) per slot, and the wireless terminal device receives X = X1 + X2 frequency domain multiplexing (FDM) PDSCHs per slot for at least one second band or cell. In some embodiments, the amount of at least one capability from at least one first band or cell and the amount of the capability of at least one second band or cell are the number of downlink (DL) bandwidth parts (BWP) per cell, and the wireless terminal device can activate X = X1 + X2 DL BWPs per cell for at least one second band or cell. The method may also include sharing at least one capability from at least one first band or cell to at least one second band or cell such that the shared capability of the at least one second band or cell is X, where X2 < X ≦ X1 + X2 and X is configured by an upper layer configuration.

[0012] In some exemplary implementations, which may be combined with any of the other exemplary implementations disclosed herein, the first and second bands are a band pair, and the amount of at least one capability of at least one first band and the amount of capability of at least one second band without sharing are represented as X1. The method may include sharing at least one capability from at least one first band to at least one second band such that the shared capability of at least one second band is 2 × X1. In another embodiment, the amount of at least one capability of at least one first band and the amount of capability of at least one second band without sharing are set with respect to the entire wireless terminal device and represented as X1, and the method includes sharing at least one capability from at least one first band to at least one second band such that the shared capability of at least one second band is 2 × X1.

[0013] In some exemplary implementations, which may be combined with any of the other exemplary implementations disclosed herein, the wireless terminal device comprises K cells in bands, each including at least one first band and at least one second band, and the wireless terminal device has at least one capability, with respect to values ​​X1, X2, ..., X for each band. K This shows that K is an integer and K≧3. This method shows that the shared capability (X) with respect to the second bandwidth is [ka] This may include sharing at least one capability with respect to all K bands except the second band, where k is an integer and 1 ≤ k ≤ K. Similarly, a wireless terminal device may consist of K cells, each containing at least one first cell and at least one second cell, where each cell has values ​​X1, X2, ..., X with respect to at least one capability. K This shows that K is an integer and K ≥ 3. This method shows that the shared ability (X) with respect to the second cell is

Chem.

[0014] In some exemplary implementations, which can be combined with any of the other exemplary implementations disclosed herein, the wireless terminal device is configured with cells within K bands, including at least one first band and at least one second band, and the wireless terminal device has values X1, X2,...., X for each band regarding at least one capability K are shown, where K is an integer and K ≥ 3. The method is such that the shared capability (X) regarding the second band

Chem.

Chem.

[0015] In some exemplary implementations, which may be combined with any of the other exemplary implementations disclosed herein, a wireless terminal device is configured with a combination of K bands, including at least one first band and at least one second band, and the wireless terminal device exhibits a value X1 per band with respect to at least one capability, where K is an integer and K ≥ 3. The method may also include sharing at least one capability with respect to all K bands except the second band, such that the shared capability (X) with respect to the second band is X = K·X1. Similarly, a wireless terminal device may be configured with K bands, including at least one first band and at least one second band, and the wireless terminal device exhibits a value X1 per wireless terminal device per band with respect to at least one capability, where K is an integer and K ≥ 3. This method may include sharing at least one capability with respect to all K bands other than the second band with respect to the second band, such that the shared capability (X) with respect to the second band is X = K·X1.

[0016] In some exemplary implementations, which may be combined with any of the other exemplary implementations disclosed herein, the Method may include obtaining timing information relating to at least one second band or cell based on a synchronization signal block (SSB) or other tracking reference signal (TRS) or channel status information reference signal (CSI-RS) transmitted over at least one second band or cell. The Method may also include providing a radio access network node with a band pair comprising at least one first band and at least one second band, wherein at least one capability relating to one band in the band pair can be shared with another band in the band pair. The Method may also include providing a radio access network node with a band pair comprising at least one first band and at least one second band, and a sharing direction from at least one first band to at least one second band. The method may include indicating to a radio access network node a bandwidth that includes at least one first cell and at least one second cell as a bandwidth supporting the sharing of at least one capability from at least one first cell to at least one second cell, wherein at least one first cell and at least one second cell are in the same bandwidth. The method may also include indicating to a radio access network node a bandwidth combination comprising at least one first bandwidth and at least one second bandwidth, wherein at least one capability relating to one or more bandwidths in the bandwidth combination can be shared with another bandwidth in the bandwidth combination. The method may also include indicating to a radio access network node a list of capabilities that include at least one capability that a radio terminal device may share from one bandwidth or cell to another bandwidth or cell. The method may also include receiving communications from a radio access network node that trigger sharing by radio resource control (RRC) signaling, a media access control element (MAC-CE), or downlink control information (DCI). In various embodiments, communication from a wireless access network node indicates secondary cell (SCell) deactivation, triggering sharing from the SCell.In other embodiments, communication from a wireless access network node indicates a secondary cell (SCell) pause, triggering sharing from the SCell.

[0017] In some exemplary implementations, which may be combined with any of the other exemplary implementations disclosed herein, a method implemented by a radio access network node includes receiving an indication of capability sharing information from a radio terminal device and communicating with the radio terminal device in accordance with the capability sharing information. In some embodiments, receiving an indication of capability sharing information from a radio terminal device includes receiving an indication of support for one band combination, which includes at least one first band and at least one second band. The method may include transmitting to the radio terminal device the configuration of at least one second band of the radio terminal device, but not transmitting the configuration of at least one first band of the radio terminal device. The method may also include transmitting to the radio terminal device the configuration of one or more cells in at least one first band and one or more cells in at least one second band, all of which one or more cells in at least one first band of the radio terminal device are deactivated. This method may include transmitting the configuration of at least one first cell and the configuration of at least one second cell to a wireless terminal device, and at least one first cell of the wireless terminal device is deactivated. This method may also include transmitting the configuration of one or more cells in at least one first band and the configuration of one or more cells in at least one second band to a wireless terminal device, and all of the one or more cells in at least one first band of the wireless terminal device are in a dormant state. This method may also include transmitting the configuration of at least one first cell and the configuration of at least one second cell to a wireless terminal device, and at least one first cell of the wireless terminal device is in a dormant state. This method may also include transmitting the configuration of one or more cells in at least one first band and the configuration of one or more cells in at least one second band to a wireless terminal device, and all of the one or more cells in at least one first band of the wireless terminal device are in a discontinuous receive (DRX) off state.The method may include transmitting to a wireless terminal device the configuration of at least one first cell and at least one second cell, wherein at least one first cell of the wireless terminal device is in a discontinuous reception (DRX) off state.

[0018] In some exemplary implementations, which may be combined with any of the other exemplary implementations disclosed herein, the Method may include transmitting to a wireless terminal device the configuration of one or more cells in at least one first band and one or more cells in at least one second band, all of the one or more cells in at least one first band of the wireless terminal device are not scheduled within a time unit. The Method may also include transmitting to a wireless terminal device the configuration of one or more cells in at least one first band and one or more cells in at least one second band, all of the one or more cells in at least one first band are configured as downlinks within a time unit. The Method may also include transmitting to a wireless terminal device the configuration of one or more cells in at least one first band and one or more cells in at least one second band, all of the one or more cells in at least one first band are configured as uplinks within a time unit. The method may include transmitting the configuration of at least one first cell and at least one second cell to a wireless terminal device, wherein at least one first cell of the wireless terminal device is not scheduled within a time unit. The method may include transmitting the configuration of at least one first cell and at least one second cell to a wireless terminal device, wherein at least one first cell is configured as a downlink within a time unit. The method may include transmitting the configuration of at least one first cell and at least one second cell to a wireless terminal device, wherein at least one first cell is configured as an uplink within a time unit.

[0019] In some exemplary implementations, which may be combined with any of the other exemplary implementations disclosed herein, the method may include transmitting to a wireless terminal device the configuration of one or more cells in two or more first bands and one or more cells in at least one second band, all of the one or more cells in two or more first bands of the wireless terminal device are deactivated. The method may also include transmitting to a wireless terminal device the configuration of one or more cells in two or more first bands and one or more cells in at least one second band, all of the one or more cells in two or more first bands of the wireless terminal device are in a dormant state. The method may also include transmitting to a wireless terminal device the configuration of one or more cells in two or more first bands and one or more cells in at least one second band, all of the one or more cells in two or more first bands of the wireless terminal device are in a discontinuous receive (DRX) off state. The method may include transmitting to a wireless terminal device the configuration of one or more cells in two or more first bands and one or more cells in at least one second band, wherein all of the one or more cells in two or more first bands of the wireless terminal device are not scheduled within a given time unit. The method may also include transmitting to a wireless terminal device the configuration of two or more first cells and at least one second cell, wherein two or more first cells of the wireless terminal device are deactivated. The method may also include transmitting to a wireless terminal device the configuration of two or more first cells and at least one second cell, wherein two or more first cells of the wireless terminal device are in a dormant state. The method may also include transmitting to a wireless terminal device the configuration of two or more first cells and at least one second cell, wherein two or more first cells of the wireless terminal device are in a discontinuous receive (DRX) off state.The method may include transmitting to a wireless terminal device the configuration of two or more first cells and the configuration of at least one second cell, wherein the two or more first cells of the wireless terminal device are not scheduled within a given time unit.

[0020] In some exemplary implementations, which may be combined with any of the other exemplary implementations disclosed herein, the Method may include receiving an indication of a band pair from a wireless terminal device, wherein at least one capability relating to one band in a band pair can be shared with another band in the band pair. The Method may also include receiving a sharing direction from a wireless terminal device. The Method may include receiving an indication of a band from a wireless terminal device, which includes at least one first cell and at least one second cell as a band supporting the sharing of at least one capability from at least one first cell to at least one second cell. The Method may also include receiving an indication of a band combination from a wireless terminal device, which includes at least one first band and at least one second band, wherein at least one capability relating to one or more bands in a band combination can be shared with another band in the band combination. The Method may also include receiving an indication of a list of capabilities from a wireless terminal device that the wireless terminal device may share from one band or cell to another band or cell. The method may include communicating with a wireless terminal device to trigger sharing by radio resource control (RRC) signaling, a media access control element (MAC-CE), or downlink control information (DCI). In some embodiments, the communication indicates secondary cell (SCell) deactivation and triggers sharing from the SCell. In some embodiments, the communication indicates secondary cell (SCell) hiatus and triggers sharing from the SCell.

[0021] In some exemplary implementations, which may be combined with any of the other exemplary implementations disclosed herein, at least one capability comprises at least one of the following: the number of physical downlink shared channels (PDSCHs) received in a slot; the number of physical uplink shared channels (PUSCHs) transmitted in a slot; the number of downlink (DL) bandwidths, uplink (UL) bandwidths, active bandwidth portions (BWPs), configured BWPs, downlink control information (DCI) sizes, blind decoding / control channel element (BD / CCE) budgets, transmission configuration indication (TCI) states, multiple input multiple output (MIMO) layers, synchronous signal blocks (SSBs) or channel state information reference signals (CSI-RS), configured grant PUSCHs or semi-persistent scheduling (SPS) PDSCHs, hybrid automatic retransmission request (HARQ) processes, or timing information based on SSBs or tracking reference signals (TRS).

[0022] In some other implementations, devices for wireless communication, such as network devices, are disclosed. A network device may include one or more processors and one or more memories, the one or more processors being configured to read computer code from one or more memories and implement one of the methods described above. Devices for wireless communication may be radio access network nodes (e.g., base stations) or radio terminal devices (e.g., UEs).

[0023] In some other implementations, a computer program product is disclosed. The computer program product may include a non-transient computer-readable medium containing computer code stored on the computer program product, which, when executed by one or more processors, causes one or more processors to implement one of the methods described above.

[0024] The embodiments described above, other aspects, and alternative implementations thereof will be illustrated in detail by the following drawings, description, and claims. [Brief explanation of the drawing]

[0025] [Figure 1] Figure 1 shows a wireless access network with exemplary uplink, downlink, and control channel configurations. [Figure 2] Figure 2 shows various exemplary processing components of the wireless terminal device and wireless access network node shown in Figure 1. [Figure 3] Figure 3 shows a timing diagram illustrating aspects of UE capability sharing in various embodiments. [Figure 4] Figure 4 shows another timing diagram illustrating aspects of UE capability sharing in various embodiments. [Figure 5] Figure 5 shows another timing diagram illustrating aspects of UE capability sharing in various embodiments. [Figure 6] Figure 6 shows another timing diagram illustrating aspects of UE capability sharing in various embodiments. [Modes for carrying out the invention]

[0026] Detailed explanation The examples of the technologies and implementations and / or embodiments described herein can be used to facilitate over-the-air radio resource allocation, configuration, and signaling in radio access networks, as well as the operational configuration of UEs and / or base stations within radio access networks. The term “exemplary” is used to mean “an example of ~” and does not imply an ideal or preferred example, implementation, or embodiment unless otherwise stated. Section headings are used in this disclosure to facilitate understanding of the disclosed implementations and are not intended to limit the technologies disclosed in a section to only the corresponding section. The disclosed implementations may further be embodied in a variety of different forms, and therefore the scope of this disclosure or claimed subject matter is intended to be construed as not being limited to any of the embodiments described below. Various implementations may be embodied as methods, devices, components, systems, or non-transient computer-readable media. Thus, embodiments of this disclosure may take the form of, for example, hardware, software, firmware, or any combination thereof.

[0027] This disclosure deals with transmissions in a wireless cellular access network, and more specifically, with mechanisms for sharing UE capabilities. Various exemplary embodiments provide configurations and signaling for enabling a UE to share capabilities from a first band or cell to a second band or cell. Thus, UE capabilities can be reused or reallocated from one cell or band to another that is not activated, configured, or scheduled during one period. As a result, UE capability utilization efficiency can be increased. (Overview of Wireless Networks)

[0028] A wireless communication network may include a wireless access network for providing network access to wireless terminal devices and a core network for routing data between access networks or between wireless networks and other types of data networks. In the wireless access network, wireless resources are provided for allocation and used to transmit data and control information. Figure 1 shows an exemplary wireless access network 100, which includes wireless access network nodes (WANNs) or wireless base stations 102 (hereinafter referred to as wireless base stations, base stations, wireless access nodes, wireless access network nodes, or WANNs) and wireless terminal devices or user equipment (UEs) 104 (hereinafter referred to as user equipment, UEs, terminal devices, or wireless terminal devices) communicating with each other via over-the-air (OTA) wireless communication resources 106. The wireless access network 100 may be implemented, for example, as a 2G, 3G, 4G / LTE, or 5G cellular wireless access network. Correspondingly, the base station 102 may be implemented as a 2G base station, a 3G Node B, an LTE eNB, or a 5G New Radio (NR) gNB. User equipment 104 may be implemented as a mobile or fixed communication device on which a mobile identification module for accessing base station 102 is installed. User equipment 104 may include, but is not limited to, mobile phones, laptop computers, tablets, personal digital assistants, wearable devices, distributed remote sensor devices, and desktop computers. Alternatively, the wireless access network 100 may be implemented as other types of wireless access networks such as Wi-Fi, Bluetooth®, ZigBee®, and WiMAX networks.

[0029] Figure 2 further illustrates exemplary processing components of the WANN 102 and UE 104 in Figure 1. UE 104 may include a transceiver network 206 coupled to one or more antennas 208, for example, to provide wireless communication with WANN 102 (or to other UEs). The transceiver network 206 may also be coupled to a processor 210, which may also be coupled to a memory 212 or other storage device. Memory 212 may be transient or non-transient and may store computer instructions or code therein that, when read and executed by the processor 210, cause the processor 210 to implement various of the functions, methods, and processes of UE 104 described herein. Memory 212 may also be used and allocated to buffer UL and DL transmissions within each band / carrier. Memory 212 may include multiple memory modules (to some examples, program memory, baseband memory, and / or RF memory, etc.) assigned to different functions. Similarly, the WANN102 may include a transceiver network 214 coupled to one or more antennas 216, which may include an antenna tower 218 in various forms, to provide wireless communication with the UE104. The transceiver network 214 may be coupled to one or more processors 220, which may be further coupled to a memory 222 or other storage device. The memory 222 may be transient or non-transient and may store instructions or code in the memory 222 that, when read and executed by one or more processors 220, cause one or more processors 220 to implement various functions, methods, and processes of the WANN102 described herein. (Wireless communication resource scheduling / signaling)

[0030] Returning to Figure 1, the radio communication resources for the over-the-air interface 106 may include a combination of frequency, time, and / or space communication resources, organized into various resource units or elements in frequency, time, and / or space. The radio communication resources 106 in the frequency domain may include portions of licensed radio frequency bands, portions of unlicensed radio frequency bands, or portions of a composite of both licensed and unlicensed radio frequency bands. The radio communication resources 106 available for carrying radio communication signals between the base station 102 and the user equipment 104 may further be divided into a physical downlink channel 110 for transmitting radio signals from the base station 102 to the user equipment 104 and a physical uplink channel 120 for transmitting radio signals from the user equipment 104 to the base station 102. The physical downlink channel 110 may further include a physical downlink control channel (PDCCH) 112 and a physical downlink sharing channel (PDSCH) 114. Similarly, the physical uplink channel 120 may further include a physical uplink control channel (PUCCH) 122 and a physical uplink sharing channel (PUSCH) 124. For simplicity, other types of downlink and uplink channels are not shown in Figure 1 but are within the scope of this disclosure. The control channels PDCCH 112 and PUCCH 122 may be used to carry control information in the form of control messages 116 and 126, which are referred to herein as downlink control information (DCI) messages or uplink control information (UCI) messages. The sharing channels (shared between data and control information), PDSCH 114 and PUSCH 124, may be allocated and used to communicate downlink data transmissions 118 and uplink data transmissions 128 between the base station 102 and user equipment 104.

[0031] The allocation and configuration of radio communication resources associated with data channels such as PDSCH and PUSCH may be provided by one or more resource scheduling DCIs carried within the PDCCH. The PDCCH may be shared by multiple UEs in the access network. In various approaches, a particular UE may be configured to perform a blind decoding procedure on a pre-configured UE-specific search space (USS) to discover and identify the payload of a resource scheduling DCI carried within a PDCCH that specifically targets the particular UE. Blind decoding may be performed on a pre-configured monitoring occasion of the PDCCH associated with the USS. Such a monitoring occasion may be referred to as a set of PDCCH candidates. Each PDCCH candidate may be associated with a set of control channel elements (CCEs). The UE may decode the PDCCH candidate using its radio network temporary identifier (RNTI). The RNTI may be used to demassage the CRC of the PDCCH candidate. If no CRC errors are detected, the UE determines that the PDCCH candidate is carrying its own control information. The UE may then process the DCI and extract resource allocation information related to the PDSCH and / or PUSCH in order to receive and / or transmit data. (Explanation of the new UE capability sharing mechanism)

[0032] This disclosure discloses a method for enabling a UE to share capabilities between bands or cells. According to various embodiments, a method is disclosed that is implemented by a radio terminal device or UE 104 for handling transmissions. As part of this method, UE 104 may share at least one capability from at least one first band or cell to at least one second band or cell. UE 104 may also indicate capability sharing information to a radio access network node or base station 102. Similarly, a method implemented by a radio access network node or base station 102 includes receiving an indication of capability sharing information from UE 104 and communicating with UE 104 in accordance with the capability sharing information.

[0033] In various approaches, if UE 104 indicates support for a single band combination including band A and band B, and UE 104 is configured with cells in band A but not with cells in band B, then UE capability for band B can be shared with band A. Thus, according to various embodiments, indicating capability sharing information to base station 102 includes indicating support for a single band combination including at least one first band and at least one second band to the radio access network node. The method may further include base station 102 transmitting configuration for at least one second band and not transmitting configuration for at least one first band, UE 104 receiving configuration for at least one second band and not receiving configuration for at least one first band, and sharing at least one capability from at least one first band to at least one second band.

[0034] In another embodiment, UE 104 is configured with cells from band A and cells from band B, and if all cells in band B are deactivated, the UE capability reported for band B can be shared with band A. Thus, the method may also include base station 102 transmitting configurations of one or more cells in at least one first band and one or more cell configurations in at least one second band, and UE 104 receiving them, all of the one or more cells in at least one first band of the wireless terminal device being deactivated. UE 104 then decides that all of the one or more cells in at least one first band are deactivated and may share at least one capability from at least one first band to at least one second band.

[0035] Similarly, if UE104 is configured with cells including cell M and cell N, and cell N is deactivated, the UE capability with respect to cell N can be shared with cell M. Cells M and N may be in the same band or in different bands. Thus, the method may include base station 102 transmitting configurations for at least one first cell and at least one second cell, which UE104 receives, and at least one first cell of the radio terminal device is deactivated. UE104 then decides to deactivate at least one first cell and may share at least one capability from at least one first cell to at least one second cell, where at least one first cell and at least one second cell are in the same band or in two separate bands.

[0036] Referring to Figure 3 as an example, UE104 is configured with cell #1 and cell #2 in bandwidth #1 and bandwidth #2, respectively. If cell #1 is deactivated, the UE capabilities relating to cell #1 can be shared with cell #2.

[0037] The cell can be activated and deactivated, for example, by MAC-CE (Media Access Control Element). When the cell is activated, UE104 may perform DL and / or UL transmissions within the cell. When the cell is deactivated, the UE is not required to perform DL or UL transmissions, except for some periodic measurements within the cell.

[0038] In another embodiment, if UE 104 is configured with cells from band A and cells from band B, and all cells in band B are in a dormant state, then the UE capability reported for band B can be shared with band A. Thus, the method may include base station 102 transmitting the configuration of one or more cells in at least one first band and the configuration of one or more cells in at least one second band, and UE 104 receiving it, all of the one or more cells in at least one first band of the wireless terminal device are in a dormant state. UE 104 then determines that all of the one or more cells in at least one first band are in a dormant state and may share at least one capability from at least one first band to at least one second band.

[0039] Similarly, if UE104 is configured with cells including cell M and cell N, and cell N is in a dormant state, the UE capability with respect to cell N can be shared with cell M. Cells M and N may be in the same band or in different bands. Thus, the method may include base station 102 transmitting configuration of at least one first cell and at least one second cell, which UE104 receives, and at least one first cell of the wireless terminal device is in a dormant state. UE104 then determines that at least one first cell is in a dormant state and may share at least one capability from at least one first cell to at least one second cell, where at least one first cell and at least one second cell are in the same band or in two separate bands.

[0040] A cell can be in a dormant or non-dormant state. Base station 102 may indicate that a cell is dormant by upper-layer signaling or by switching the active BWP (bandwidth portion) within the cell to a dormant BWP. When the cell is in a non-dormant state, UE 104 may perform DL and / or UL transmissions within the cell. When the cell is in a dormant state, UE 104 is not required to perform DL or UL transmissions, except for some periodic measurements within the cell.

[0041] In another embodiment, if UE 104 is configured with cells from band A and cells from band B, and all cells in band B are in a discontinuous receive (DRX) off state, then the UE capability reported for band B can be shared with band A. Thus, the method may include base station 102 transmitting the configuration of one or more cells in at least one first band and the configuration of one or more cells in at least one second band, and UE 104 receiving it, such that all of the one or more cells in at least one first band of the wireless terminal device are in a discontinuous receive (DRX) off state. UE 104 then determines that all of the one or more cells in at least one first band are in a discontinuous receive (DRX) off state and may share at least one capability from at least one first band to at least one second band.

[0042] Similarly, if UE104 is configured with cells including cell M and cell N, and cell N is in a DRX-off state, then the UE capability for cell N can be shared with cell M. Cells M and N may be in the same band or in different bands. Thus, the method may include base station 102 transmitting configurations for at least one first cell and at least one second cell, which UE104 receives, and at least one first cell of the radio terminal device is in a DRX-off state. UE104 then determines that at least one first cell is in a DRX-off state and may share at least one capability from at least one first cell to at least one second cell, where at least one first cell and at least one second cell are in the same band or in two separate bands.

[0043] While DRX is off, UE104 is not required to monitor the PDCCH (Physical Downlink Control Channel) with respect to at least the C-RNTI (Cell Radio Network Temporary Identifier). In this case, at least PDCCH-related UE capabilities can be shared from one cell to another while DRX is off. While DRX is on, UE104 may need to monitor the PDCCH with respect to at least the C-RNTI. In this case, UE104 may stop sharing UE capabilities from this cell to another cell.

[0044] Referring to Figure 4 as an example, UE104 is configured with cell #1 and cell #2 in bandwidth #1 and bandwidth #2, respectively. When cell #1 is in the DRX off state, the UE capability for cell #1 can be shared with cell #2.

[0045] In another embodiment, if UE 104 is configured with cells from Band A and cells from Band B, and all cells in Band B are not scheduled within a single time unit (e.g., a slot), then the UE capability reported for Band B can be shared with Band A within that time unit. Thus, the method may include base station 102 transmitting configurations of one or more cells in at least one first band and one or more cells in at least one second band, and UE 104 receiving them, such that all of the one or more cells in at least one first band of the wireless terminal device are not scheduled within a certain time unit. UE 104 then decides that all of the one or more cells in at least one first band are not scheduled within a certain time unit, and may share at least one capability from at least one first band to at least one second band during that time unit.

[0046] In another embodiment, if UE 104 is configured with cells from Band A and cells from Band B, and all cells in Band B are configured as downlinks within a single time unit (e.g., a slot), then the uplink-related UE capabilities reported with respect to Band B can be shared with Band A within that time unit. Thus, the method may also include base station 102 transmitting configurations of one or more cells in at least one first band and one or more cell configurations in at least one second band, and UE 104 receiving them, such that all of the one or more cells in at least one first band are configured as downlinks within a certain time unit. UE 104 then decides that all of the one or more cells in at least one first band are configured as downlinks within a certain time unit, and during that time unit, at least one uplink-related capability may be shared from at least one first band to at least one second band.

[0047] In another embodiment, UE 104 is configured with cells from Band A and cells from Band B, and all cells in Band B are configured as uplinks within a single time unit (e.g., a slot). Then, downlink-related UE capabilities reported with respect to Band B can be shared with Band A within that time unit. Thus, the method may also include base station 102 transmitting configurations of one or more cells in at least one first band and one or more cell configurations in at least one second band, and UE 104 receiving them, such that all of the one or more cells in at least one first band are configured as downlinks within a time unit. UE 104 then decides that all of the one or more cells in at least one first band are configured as uplinks within a time unit, and during that time unit, at least one downlink-related capability may be shared from at least one first band to at least one second band.

[0048] Similarly, if UE104 is configured with cells including cell M and cell N, and cell N is not scheduled within a time unit (e.g., a slot), then the UE capability for cell N can be shared with cell M within that time unit. Cells M and N may be in the same band or in different bands. Thus, the method may include base station 102 transmitting configurations for at least one first cell and at least one second cell, which UE104 receives, and at least one first cell of the wireless terminal device is not scheduled within a time unit. UE104 then decides that at least one first cell is not scheduled within a time unit, and may share at least one capability from at least one first cell to at least one second cell during that time unit, and at least one first cell and at least one second cell are in the same band or in two separate bands.

[0049] When UE104 is not scheduled to transmit an uplink within a single time unit (e.g., a slot) with respect to a cell, UE104 will not transmit an uplink during that time unit. At least the uplink-related UE capability may be shared with another bandwidth or cell.

[0050] When UE104 is not scheduled to receive downlinks within a single time unit (e.g., a slot) with respect to a cell, UE104 will not receive downlinks during that time unit. At least downlink-related UE capabilities can be shared with another bandwidth or cell.

[0051] In another embodiment, if UE 104 is configured with cells including cell M and cell N, and cell M is configured as a downlink within a time unit (e.g., a slot), then the uplink-related UE capabilities relating to cell M can be shared with cell N within that time unit. Thus, the method may include base station 102 transmitting configurations for at least one first cell and at least one second cell, which UE 104 receives, and at least one first cell being configured as a downlink within a time unit. UE 104 then decides that at least one first cell is configured as a downlink within a time unit, and during that time unit, at least one uplink-related capability may be shared from at least one first cell to at least one second cell, where at least one first cell and at least one second cell are in the same band or two separate bands.

[0052] In another embodiment, if UE 104 is configured with cells including cell M and cell N, and cell M is configured as an uplink within a time unit (e.g., a slot), then the downlink-related UE capabilities for cell M can be shared with cell N within that time unit. Thus, the method may include base station 102 transmitting configurations of one or more cells in at least one first band and one or more cell configurations in at least one second band, and UE 104 receiving them, all of the one or more cells in at least one first band being configured as downlinks within a time unit. UE 104 then decides that at least one first cell is configured as an uplink within a time unit, and during that time unit, at least one downlink-related capability may be shared from at least one first cell to at least one second cell, where the at least one first cell and at least one second cell are in the same band or two separate bands.

[0053] In various embodiments, a single time unit may refer to a frame, subframe, slot, minislot, PDCCH monitoring occasion, PDSCH transmission occasion, PUSCH transmission occasion, CSI-RS transmission occasion in the time domain, etc. A single frame may typically be equal to 10 milliseconds. A single subframe may typically be equal to 1 millisecond. A single slot may be equal to 1 millisecond, 0.5 milliseconds, 0.25 milliseconds, 0.125 milliseconds, or other values, depending on the subcarrier interval. A single slot typically contains 14 or 12 symbols. A single minislot typically contains several symbols, e.g., 2, 4, or 7 symbols. A PDCCH monitoring occasion is typically no greater than 3 symbols. PDSCH transmission occasions, PUSCH transmission occasions, and CSI-RS transmission occasions may typically be equal to several symbols, depending on the base station scheduling or higher-layer configuration.

[0054] Refer to Figure 5 for an example. The UE104 may be configured with two cells, for example, cell #1 in bandwidth #1 and cell #2 in bandwidth #2. In this example, the UE104 can receive up to one PDSCH in each slot in each cell. In cell #1, one PDSCH is scheduled in slots 1 and 3, respectively. However, in slot 2, no PDSCH is scheduled in cell #1. In this case, the UE capability may be shared from cell #1 to cell #2, i.e., the UE104 can receive two PDSCHs in slot 2 in cell #2.

[0055] The above discusses only the sharing of UE capabilities from one band to another, but a similar mechanism can be applied to cases where UE capabilities from multiple bands can be shared into one band. In the following embodiment, UE104 may be configured with a combination of bands including K different bands, where K is an integer and K ≥ 3.

[0056] In one embodiment, if all cells in all K bands except band A are deactivated, the UE capabilities from all bands of the K bands except band A can be shared with band A. For example, if UE 104 is configured with a band combination including band A, band B, and band C, and all cells in bands B and C are deactivated, the UE capabilities from bands B and C can be shared with band A. Thus, the method may include at least one first band comprising two or more first bands, a base station 102 transmitting configurations of one or more cells in two or more first bands and one or more cell configurations in at least one second band, and UE 104 receiving them, all of the one or more cells in two or more first bands of the wireless terminal device are deactivated. UE104 may then decide that all of one or more cells in two or more first bands are deactivated, and may share at least one capability from at least one of the two or more first bands to at least one second band.

[0057] In another embodiment, if all cells in all K bands except band A are in a dormant state, the UE capabilities from all K bands except band A can be shared with band A. For example, if UE 104 is configured with a band combination including band A, band B, and band C, and all cells in bands B and C are in a dormant state, the UE capabilities from bands B and C can be shared with band A. Thus, the method may include at least one first band comprising two or more first bands, a base station 102 transmitting configurations of one or more cells in two or more first bands and one or more cell configurations in at least one second band, and UE 104 receiving them, all of the one or more cells in two or more first bands of the wireless terminal device are in a dormant state. UE104 then determines that all of one or more cells in two or more first bands are in a dormant state and may share at least one capacity from at least one of the two or more first bands to at least one second band.

[0058] In another embodiment, if all cells in all K bands except band A are in a DRX-off state, the UE capabilities from all K bands except band A can be shared with band A. For example, if UE 104 is configured with a band combination including band A, band B, and band C, and all cells in bands B and C are in a DRX-off state, the UE capabilities from bands B and C can be shared with band A. Thus, the method may include at least one first band comprising two or more first bands, a base station 102 transmitting configurations of one or more cells in two or more first bands and one or more cell configurations in at least one second band, and UE 104 receiving them, all of the one or more cells in two or more first bands of a wireless terminal device are in a DRX-off state. UE104 then determines that all of one or more cells in two or more first bands are in a DRX off state and may share at least one capability from at least one of the two or more first bands to at least one second band.

[0059] In another embodiment, if all cells in all K bands except band A are not scheduled within a single time unit, the UE capabilities from all K bands except band A can be shared with band A for that time unit. For example, if UE 104 is configured with a band combination including band A, band B, and band C, and all cells in bands B and C are not scheduled within a single time unit, the UE capabilities from bands B and C can be shared with band A for that time unit. Thus, the method may include at least one first band comprising two or more first bands, a base station 102 transmitting configurations of one or more cells in two or more first bands and one or more cell configurations in at least one second band, and UE 104 receiving them, such that all one or more cells in two or more first bands of a wireless terminal device are not scheduled within a given time unit. UE104 then decides that all of one or more cells in two or more first bands are not scheduled within a given time unit, and during that time unit, at least one capacity may be shared from at least one of the two or more first bands to at least one second band.

[0060] In a manner similar to that discussed above with respect to multiple bandwidths, although the above discusses only the sharing of UE capabilities from one cell to another, a similar mechanism can be applied to cases where UE capabilities from multiple cells can be shared to one cell. In the following embodiment, UE104 may consist of K cells, where K is an integer and K≧3.

[0061] In one embodiment, if all K cells except cell M are deactivated, the UE capabilities from all K cells except cell M can be shared with cell M. For example, if UE 104 is configured with cell M, cell N, and cell P, and cells N and P are deactivated, the UE capabilities from cells N and P can be shared with cell M. Thus, the method may include at least one first cell comprising two or more first cells, a base station 102 transmitting the configuration of two or more first cells and at least one second cell, and UE 104 receiving it, where two or more first cells of the wireless terminal device are deactivated. UE104 then decides that two or more first cells are deactivated, and may share at least one capability from at least one of the two or more first cells to at least one second cell, such that the two or more first cells and at least one second cell are in the same or separate bandwidths.

[0062] In another embodiment, if all K cells except cell M are in a dormant state, the UE capabilities from all K cells except cell M can be shared with cell M. For example, if UE 104 is configured with cell M, cell N, and cell P, and cells N and P are in a dormant state, the UE capabilities from cells N and P can be shared with cell M. Thus, the method may also include a first cell comprising two or more first cells, a base station 102 transmitting the configuration of two or more first cells and the configuration of at least one second cell, and UE 104 receiving it, where two or more first cells of the wireless terminal device are in a dormant state. UE104 then determines that two or more first cells are in a dormant state and may share at least one capacity from at least one of the two or more first cells to at least one second cell, such that the two or more first cells and at least one second cell are in the same or separate bandwidths.

[0063] In another embodiment, if all K cells except cell M are in a DRX-off state, the UE capabilities from all K cells except cell M can be shared with cell M. For example, if UE 104 is configured with cell M, cell N, and cell P, and cells N and P are in a DRX-off state, the UE capabilities from cells N and P can be shared with cell M. Thus, the method may also include a first cell comprising two or more first cells, a base station 102 transmitting the configuration of two or more first cells and the configuration of at least one second cell, and UE 104 receiving it, wherein two or more first cells of the wireless terminal device are in a DRX-off state. UE104 then determines that two or more first cells are in a DRX-off state and may share at least one capability from at least one of the two or more first cells to at least one second cell, such that the two or more first cells and at least one second cell are in the same or separate bandwidths.

[0064] In another embodiment, if all K cells except cell M are not scheduled within a time unit, the UE capabilities from all K cells except cell M can be shared with cell M for that time unit. For example, if UE 104 is configured with cell M, cell N, and cell P, and cells N and P are not scheduled within a time unit, the UE capabilities from cells N and P can be shared with cell M for that time unit. Thus, the method may include at least one first cell comprising two or more first cells, a base station 102 transmitting the configuration of two or more first cells and at least one second cell, and UE 104 receiving it, wherein two or more first cells of the wireless terminal device are not scheduled within a time unit. UE104 then determines that two or more first cells are not scheduled within a given time unit, and during that time unit, at least one capacity may be shared from at least one of the two or more first cells to at least one second cell, such that the two or more first cells and at least one second cell are in the same or separate bandwidths.

[0065] According to various embodiments disclosed herein, the cell configuration may include, for example, a configuration relating to the downlink carrier and / or uplink carrier, including frequency locations / bandwidths relating to the downlink carrier and / or uplink carrier. The cell configuration may also include a detailed channel / signal configuration, such as a PDSCH / PUSCH configuration. Other configurations relating to the cell are also conceivable.

[0066] According to various embodiments disclosed herein, at least the following UE capabilities can be shared from one band to another, or from one cell to another: • Number of physical downlink shared channels (PDSCHs) received within a single slot • Number of physical uplink shared channels (PUSCH) transmitted within a single slot • Downlink (DL) bandwidth • Uplink (UL) bandwidth • Number of Active Bandwidth Portions (BWP) • Number of configured BWPs • Number of Downlink Control Information (DCI) sizes • Number of Blind Decoding / Control Channel Element (BD / CCE) Budgets • Number of Transmission Configuration Indication (TCI) states • Number of multi-input multiple-output (MIMO) layers • Number of Synchronization Signal Blocks (SSB) or Channel Status Information Reference Signals (CSI-RS) • Number of configured Grant PUSCH or Semi-Persistent Scheduling (SPS) PDSCH • Number of Hybrid Automated Retransmission Request (HARQ) processes, or • Timing information based on SSB or Tracking Reference Signal (TRS) Downlink-related UE capabilities may include at least some or all of the following: • Number of physical downlink shared channels (PDSCHs) received within a single slot • Downlink (DL) bandwidth • The number of active bandwidth portions (BWPs), for example, the number of active DL BWPs. • Number of configured BWPs, e.g., number of configured DL BWPs • Number of Downlink Control Information (DCI) sizes • Number of Blind Decoding / Control Channel Element (BD / CCE) Budgets • Number of Transmission Configuration Indication (TCI) states • Number of multi-input multiple-output (MIMO) layers • Number of Synchronization Signal Blocks (SSB) or Channel Status Information Reference Signals (CSI-RS) • Number of configured Grant PUSCH or Semi-Persistent Scheduling (SPS) PDSCH • Number of Hybrid Automated Retransmission Request (HARQ) processes, or • Timing information based on SSB or Tracking Reference Signal (TRS)

[0067] Uplink-related UE capabilities may include at least some or all of the following: • Number of physical uplink shared channels (PUSCH) transmitted within a single slot • Uplink (UL) bandwidth • Number of active bandwidth portions (BWPs), e.g., number of active UL BWPs. • Number of configured BWPs, e.g., number of configured UL BWPs • Number of Transmission Configuration Indication (TCI) states • Number of multi-input multiple-output (MIMO) layers • Number of configured Grant PUSCH or Semi-Persistent Scheduling (SPS) PDSCH • Number of Hybrid Automated Retransmission Request (HARQ) processes, or • Timing information based on SSB or Tracking Reference Signal (TRS)

[0068] In various embodiments, UE104 may represent a value with respect to one UE capability for bandwidth A (e.g., X1) and a value with respect to bandwidth B (without sharing) (e.g., X2). If the UE capability for bandwidth A is shared with bandwidth B, the UE capability for bandwidth B is X = X1 + X2 in one embodiment. In other words, the amount of at least one capability from at least one first bandwidth or cell may be represented as X1, and the amount of capability of at least one second bandwidth or cell without sharing may be represented as X2. The method may also include sharing at least one capability from at least one first bandwidth or cell to at least one second bandwidth or cell such that the shared capability of at least one second bandwidth or cell is X, where X = X1 + X2. The following are specific examples according to this embodiment.

[0069] In one embodiment, if UE104 can receive one PDSCH per slot for band A and two PDSCHs per slot for band B, and the UE capability for band A is shared with band B, then UE104 can receive three TDM (Time Domain Multiplexing) PDSCHs per slot for band B. TDM PDSCHs mean that these PDSCHs do not overlap with each other in the time domain. These PDSCHs may or may not overlap in the frequency domain. In this case, X1=1, X2=2, and X=X1+X2=3.

[0070] In another embodiment, if UE104 can receive one PDSCH per slot with respect to band A and one PDSCH per slot with respect to band B, and the UE capability with respect to band A is shared with band B, then UE104 can receive two FDM (Frequency Domain Multiplexing) PDSCHs per slot with respect to band B. FDM PDSCHs mean that these PDSCHs do not overlap with each other in the frequency domain. These PDSCHs may or may not overlap in the time domain. In this case, X1=1, X2=1, and X=X1+X2=2. In other words, at least one capability from at least one first band or cell and at least one capability from at least one second band or cell is the number of physical downlink shared channels (PDSCHs) per slot, and the wireless terminal device receives X=X1+X2 frequency domain multiplexing (FDM) PDSCHs per slot with respect to at least one second band or cell.

[0071] In another embodiment, if UE104 can transmit two pushes per slot with respect to band A and one push per slot with respect to band B, and the UE capability with respect to band A is shared with band B, then UE104 can transmit three TDM pushes per slot with respect to band B in this case. TDM pushes mean that these pushes do not overlap with each other in the time domain. These pushes may or may not overlap in the frequency domain. In this case, X1=2, X2=1, and X=X1+X2=3.

[0072] In another embodiment, if UE104 can transmit one push per slot with respect to band A and one push per slot with respect to band B, and the UE capability with respect to band A is shared with band B, then UE104 can transmit two FDM pushes per slot in this case with respect to band B. The FDM pushes mean that these pushes do not overlap with each other in the frequency domain. These pushes may or may not overlap in the time domain. In this case, X1=1, X2=1, and X=X1+X2=2.

[0073] In another embodiment, if UE104 can receive downlink channels / signals using up to X1 frequency resources (i.e., frequency bandwidth) for band A and up to X2 frequency resources for band B, and the UE capability for band A is shared with band B, then UE104 can receive downlink channels / signals using up to X1+X2 frequency resources for band B. Frequency resources can be in units such as RB (resource block), RE (resource element), or Hz (Hertz). For example, if UE104 can receive PDSCH using up to 50 MHz (million Hertz) frequency resources for band A and up to 50 MHz frequency resources for band B, and the UE capability for band A is shared with band B, then UE104 can receive PDSCH using up to 100 MHz frequency resources for band B.

[0074] In another embodiment, if UE104 can transmit uplink channels / signals using up to X1 frequency resources (i.e., frequency bandwidth) for band A and up to X2 frequency resources for band B, and the UE capability for band A is shared with band B, then UE104 can transmit uplink channels / signals using up to X1+X2 frequency resources for band B. Frequency resources can be in units such as RB (resource block), RE (resource element), or Hz (Hertz). For example, if UE104 can transmit PUSCH using up to 50 MHz (million Hertz) frequency resources for band A and up to 50 MHz frequency resources for band B, and the UE capability for band A is shared with band B, then UE104 can transmit PUSCH using up to 100 MHz frequency resources for band B.

[0075] In another embodiment, if UE104 can activate one DL BWP per cell with respect to band A and one DL BWP per cell with respect to band B, and the UE capability with respect to band A is shared with band B, then UE104 can activate two DL BWPs per cell with respect to band B in this case. In this case, X1=1, X2=1, and X=X1+X2=2. In other words, at least one capability from at least one first band or cell and at least one capability from at least one second band or cell is the number of downlink (DL) bandwidth portions (BWPs) per cell, and the wireless terminal device can activate X=X1+X2 DL BWPs per cell with respect to at least one second band or cell.

[0076] In another embodiment, if UE104 can activate one UL BWP per cell for bandwidth A and one UL BWP per cell for bandwidth B, and the UE capability for bandwidth A is shared with bandwidth B, then UE104 can activate two UL BWPs per cell for bandwidth B in this case. In this case, X1=1, X2=1, and X=X1+X2=2.

[0077] In another embodiment, if UE104 can be configured with up to one DL BWP per cell for bandwidth A and up to two DL BWPs per cell for bandwidth B, then if the UE capability for bandwidth A is shared with bandwidth B, then UE104 can be configured with up to three DL BWPs per cell for bandwidth B. In this case, X1=1, X2=2, and X=X1+X2=3.

[0078] In another embodiment, if UE104 can be configured with up to two UL BWPs per cell for bandwidth A and up to one UL BWP per cell for bandwidth B, then if the UE capability for bandwidth A is shared with bandwidth B, then UE104 can be configured with up to three UL BWPs per cell for bandwidth B. In this case, X1=2, X2=1, and X=X1+X2=3.

[0079] In another embodiment, if UE104 can monitor PDCCH candidates for up to four DCI formats per cell size with respect to bandwidth A, and up to four DCI formats per cell size with respect to bandwidth B, then if the UE capability with respect to bandwidth A is shared with bandwidth B, then UE104 can monitor PDCCH candidates for up to eight DCI formats per cell size with respect to bandwidth B. In this case, X1=4, X2=4, and X=X1+X2=8.

[0080] In another embodiment, if UE104 can monitor PDCCH candidates for a DCI format in which up to three sizes of CRC per cell are scrambled by C-RNTI with respect to bandwidth A, and can monitor PDCCH candidates for a DCI format in which up to three sizes of CRC per cell are scrambled by C-RNTI with respect to bandwidth B, then if the UE capability for bandwidth A is shared with bandwidth B, UE104 can monitor PDCCH candidates for a DCI format in which up to six sizes of CRC per cell are scrambled by C-RNTI with respect to bandwidth B. In this case, X1=3, X2=3, and X=X1+X2=6.

[0081] In another embodiment, if UE104 can monitor up to 44 PDCCH candidates per slot per cell for bandwidth A, and up to 44 PDCCH candidates per slot per cell for bandwidth B, then if the UE capability for bandwidth A is shared with bandwidth B, UE104 can monitor up to 88 PDCCH candidates per slot per cell for bandwidth B. In this case, X1=44, X2=44, and X=X1+X2=88.

[0082] In another embodiment, if UE104 can monitor up to 56 non-overlapping CCEs per slot per cell for bandwidth A, and up to 56 non-overlapping CCEs per slot per cell for bandwidth B, then if the UE capability for bandwidth A is shared with bandwidth B, UE104 can monitor up to 112 non-overlapping CCEs per slot per cell for bandwidth B. In this case, X1=56, X2=56, and X=X1+X2=112.

[0083] In another embodiment, if UE104 can support up to two active TCI (Transmission Configuration Indicator) states per cell with respect to Band A and up to four active TCI states per cell with respect to Band B, then if the UE capability for Band A is shared with Band B, UE104 can support up to six active TCI states per cell with respect to Band B. In this case, X1=2, X2=4, and X=X1+X2=6.

[0084] In another embodiment, if UE104 can receive PDSCH with respect to a maximum of two layers with respect to cells for bandwidth A, and can receive PDSCH with respect to cells for bandwidth B, then if the UE capability for bandwidth A is shared with bandwidth B, UE104 can receive PDSCH with respect to cells for bandwidth B using up to four layers. In this case, X1=2, X2=2, and X=X1+X2=4.

[0085] In another embodiment, if UE104 can transmit PUSCH using up to two layers with respect to cells with respect to bandwidth A, and up to two layers with respect to cells with respect to bandwidth B, then if the UE capability with respect to bandwidth A is shared with bandwidth B, then UE104 can transmit PUSCH using up to four layers with respect to cells with respect to bandwidth B. In this case, X1=2, X2=2, and X=X1+X2=4.

[0086] In another embodiment, if UE104 can measure or monitor with respect to a cell with respect to band A (for example, for L1-RSRP measurement) using up to four SSBs or CSI-RSs, and with respect to a cell with respect to band B using up to four SSBs or CSI-RSs, then if the UE capability with respect to band A is shared with band B, then UE104 can measure or monitor with respect to a cell with respect to band B using up to eight SSBs or CSI-RSs. In this case, X1=4, X2=4, and X=X1+X2=8.

[0087] In another embodiment, if UE104 can be configured with up to four configured grant pushes or SPS PDSCHs per cell with respect to bandwidth A, and up to two configured grant pushes or SPS PDSCHs per cell with respect to bandwidth B, then if the UE capability with respect to bandwidth A is shared with bandwidth B, UE104 can be configured with up to six configured grant pushes or SPS PDSCHs per cell with respect to bandwidth B. In this case, X1=4, X2=2, and X=X1+X2=6.

[0088] In another embodiment, if UE104 can be configured with up to four configured grant pushes or SPS PDSCHs per cell with respect to bandwidth A, and up to two configured grant pushes or SPS PDSCHs per cell with respect to bandwidth B, then if the UE capability with respect to bandwidth A is shared with bandwidth B, UE104 can be configured with up to six configured grant pushes or SPS PDSCHs per cell with respect to bandwidth B. In this case, X1=4, X2=2, and X=X1+X2=6.

[0089] In another embodiment, if UE104 supports up to 8 HARQ processes per cell with respect to bandwidth A, and UE supports up to 8 HARQ processes per cell with respect to bandwidth B, then UE104 supports up to 16 HARQ processes per cell with respect to bandwidth B, provided that the UE capability for bandwidth A is shared with bandwidth B. In this case, X1=48, X2=8, and X=X1+X2=16.

[0090] In various embodiments, UE104 may indicate a value for a single UE capability with respect to cell M (e.g., X1) and a value for cell N (without sharing) (e.g., X2). If the UE capability for cell M is shared with cell N, the UE capability for cell N becomes X = X1 + X2 in one embodiment. The following are specific examples according to this embodiment.

[0091] In one embodiment, if UE104 can receive one PDSCH per slot with respect to cell M and two PDSCHs per slot with respect to cell N, and the UE capability with respect to cell M is shared with cell N, then UE104 can receive three TDM PDSCHs per slot with respect to cell N in this case. In this case, X1=1, X2=2, and X=X1+X2=3.

[0092] In another embodiment, if UE104 can receive one PDSCH per slot with respect to cell M and one PDSCH per slot with respect to cell N, and the UE capability with respect to cell M is shared with cell N, then UE104 can receive two FDM (Frequency Domain Multiplexing) PDSCHs per slot with respect to cell N in this case. FDM PDSCHs mean that these PDSCHs do not overlap with each other in the frequency domain. These PDSCHs may or may not overlap in the time domain. In this case, X1=1, X2=1, and X=X1+X2=2.

[0093] In another embodiment, if UE104 can transmit two pushes per slot with respect to cell M and one push per slot with respect to cell N, and the UE capability with respect to cell M is shared with cell N, then UE104 can transmit three TDM pushes per slot with respect to cell N in this case. TDM pushes mean that these pushes do not overlap with each other in the time domain. These pushes may or may not overlap in the frequency domain. In this case, X1=2, X2=1, and X=X1+X2=3.

[0094] In another embodiment, if UE104 can transmit one push per slot with respect to cell M and one push per slot with respect to cell N, and the UE capability with respect to cell M is shared with cell N, then UE104 can transmit two FDM pushes per slot with respect to cell N in this case. The FDM pushes mean that these pushes do not overlap with each other in the frequency domain. These pushes may or may not overlap in the time domain. In this case, X1=1, X2=1, and X=X1+X2=2.

[0095] In another embodiment, if UE104 can receive downlink channels / signals using up to X1 frequency resources (i.e., frequency bandwidth) with respect to cell M and up to X2 frequency resources with respect to cell N, and the UE capability with respect to cell M is shared with cell N, then UE104 can receive downlink channels / signals using up to X1+X2 frequency resources with respect to cell N. Frequency resources can be in units such as RB (resource block), RE (resource element), Hz (Hertz), etc. For example, if UE104 can receive PDSCH using up to 50 MHz (million Hertz) frequency resources with respect to cell M and up to 50 MHz frequency resources with respect to cell N, and the UE capability with respect to bandwidth A is shared with bandwidth B, then UE104 can receive PDSCH using up to 100 MHz frequency resources with respect to cell N.

[0096] In another embodiment, if UE104 can transmit uplink channels / signals using up to X1 frequency resources (i.e., frequency bandwidth) with respect to cell M and up to X2 frequency resources with respect to cell N, then if the UE capability with respect to cell M is shared with cell N, then UE104 can transmit uplink channels / signals using up to X1+X2 frequency resources with respect to cell N. Frequency resources can be in units such as RB (resource block), RE (resource element), or Hz (Hertz). For example, if UE104 can transmit PUSCH using up to 50 MHz (million Hertz) frequency resources with respect to cell M and up to 50 MHz frequency resources with respect to cell N, then if the UE capability with respect to cell M is shared with cell N, then UE104 can transmit PUSCH using up to 100 MHz frequency resources with respect to cell N.

[0097] In another embodiment, if UE104 can activate one DL BWP per cell with respect to cell M and one DL BWP per cell with respect to cell N, then if the UE capability with respect to cell M is shared with cell N, then UE104 can activate two DL BWPs per cell with respect to cell N in this case. In this case, X1=1, X2=1, and X=X1+X2=2.

[0098] In another embodiment, if UE104 can activate one UL BWP per cell with respect to cell M and one UL BWP per cell with respect to cell N, and the UE capability with respect to cell M is shared with cell N, then UE104 can activate two UL BWPs per cell with respect to cell N in this case. In this case, X1=1, X2=1, and X=X1+X2=2.

[0099] In another embodiment, if UE104 can be configured with a maximum of one DL BWP per cell with respect to cell M and a maximum of two DL BWPs per cell with respect to cell N, then if the UE capability with respect to cell M is shared with cell N, then UE104 can be configured with a maximum of three DL BWPs per cell with respect to cell N. In this case, X1=1, X2=2, and X=X1+X2=3.

[0100] In another embodiment, if UE104 can be configured with up to two UL BWPs per cell with respect to cell M and up to one UL BWP per cell with respect to cell N, then if the UE capabilities with respect to cell M are shared with cell N, then UE can be configured with up to three UL BWPs per cell with respect to cell N. In this case, X1=2, X2=1, and X=X1+X2=3.

[0101] In another embodiment, if UE104 can monitor PDCCH candidates for up to four DCI formats of size per cell with respect to cell M, and can monitor PDCCH candidates for up to four DCI formats of size per cell with respect to cell N, then if the UE capability with respect to cell M is shared with cell N, UE104 can monitor PDCCH candidates for up to eight DCI formats of size per cell with respect to cell N. In this case, X1=4, X2=4, and X=X1+X2=8.

[0102] In another embodiment, if UE104 can monitor PDCCH candidates for a DCI format in which up to three sizes of CRC per cell are scrambled by C-RNTI with respect to cell M, and can monitor PDCCH candidates for a DCI format in which up to three sizes of CRC per cell are scrambled by C-RNTI with respect to cell N, then if the UE capability for cell M is shared with cell N, UE104 can monitor PDCCH candidates for a DCI format in which up to six sizes of CRC per cell are scrambled by C-RNTI with respect to cell N. In this case, X1=3, X2=3, and X=X1+X2=6.

[0103] In another embodiment, if UE104 can monitor up to 44 PDCCH candidates per slot per cell for cell M, and up to 44 PDCCH candidates per slot per cell for cell N, then if the UE capability for cell M is shared with cell N, UE104 can monitor up to 88 PDCCH candidates per slot per cell for cell N. In this case, X1=44, X2=44, and X=X1+X2=88.

[0104] In another embodiment, if UE104 can monitor up to 56 non-overlapping CCEs per slot per cell for cell M, and up to 56 non-overlapping CCEs per slot per cell for cell N, then if the UE capability for cell M is shared with cell N, UE104 can monitor up to 112 non-overlapping CCEs per slot per cell for cell N. In this case, X1=56, X2=56, and X=X1+X2=112.

[0105] In another embodiment, if UE104 can support up to two active TCI (Transmission Configuration Indicator) states per cell for cell M and up to four active TCI states per cell for cell N, then if the UE capability for cell M is shared with cell N, UE104 can support up to six active TCI states per cell for cell N. In this case, X1=2, X2=4, and X=X1+X2=6.

[0106] In another embodiment, if UE104 can receive PDSCH with respect to cell M using up to two layers with respect to cell M, and can receive PDSCH with respect to cell N using up to two layers with respect to cell N, then if the UE capability with respect to cell M is shared with cell N, UE104 can receive PDSCH with respect to cell N using up to four layers with respect to cell N. In this case, X1=2, X2=2, and X=X1+X2=4.

[0107] In another embodiment, if UE104 can transmit PUSCH using up to two layers with respect to cell M and up to two layers with respect to cell N, then if the UE capability with respect to cell M is shared with cell N, then UE104 can transmit PUSCH using up to four layers with respect to cell N. In this case, X1=2, X2=2, and X=X1+X2=4.

[0108] In another embodiment, if UE104 can measure or monitor with respect to cell M using up to four SSBs or CSI-RSs (for example, for L1-RSRP measurement) and with respect to cell N using up to four SSBs or CSI-RSs, then if the UE capability with respect to cell M is shared with cell N, then UE104 can measure or monitor with respect to cell N using up to eight SSBs or CSI-RSs. In this case, X1=4, X2=4, and X=X1+X2=8.

[0109] In another embodiment, if UE104 can be configured with up to four configured grant PUSCH or SPS PDSCH with respect to cell M, and up to two configured grant PUSCH or SPS PDSCH with respect to cell N, then if the UE capabilities with respect to cell M are shared with cell N, UE104 can be configured with up to six configured grant PUSCH or SPS PDSCH with respect to cell N. In this case, X1=4, X2=2, and X=X1+X2=6.

[0110] In another embodiment, if UE104 can be configured with up to four configured grant PUSCH or SPS PDSCH with respect to cell M, and up to two configured grant PUSCH or SPS PDSCH with respect to cell N, then if the UE capabilities with respect to cell M are shared with cell N, UE104 can be configured with up to six configured grant PUSCH or SPS PDSCH with respect to cell N. In this case, X1=4, X2=2, and X=X1+X2=6.

[0111] In another embodiment, if UE104 supports up to 8 HARQ processes per cell for cell M and the UE supports up to 8 HARQ processes per cell for cell N, and the UE capabilities for cell M are shared with cell N, then UE104 supports up to 16 HARQ processes per cell for cell N. In this case, X1 = 48, X2 = 8, and X = X1 + X2 = 16.

[0112] In various embodiments, UE104 may indicate a value (e.g., X1) for band A and a value (e.g., X2) for band B (without sharing) for one UE capability. If the UE capabilities for band A are shared with band B, then in one embodiment, the UE capabilities become X for band B, where X2 < X ≤ X1 + X2. Similarly, UE104 may indicate a value (e.g., X1) for cell M and a value (e.g., X2) for cell N (without sharing) for one UE capability. If the UE capabilities for cell M are shared with cell N, then in this case, the UE capabilities become X for cell N, where X2 < X ≤ X1 + X2. X may be configured by the upper layer configuration in either case. In other words, the amount of at least one capability of at least one first band or cell may be represented as X1, and the amount of at least one capability of at least one second band or cell without sharing may be represented as X2. The method may include sharing at least one capability from at least one first band or cell to at least one second band or cell such that the shared capability of the at least one second band or cell is X, where X2 < X ≤ X1 + X2, and X is configured by the upper layer configuration.

[0113] For example, if UE104 supports 2 TCI states for band A and 2 TCI states for band B, and the UE capabilities for band A are shared with band B, then the base station 102 may configure UE104 to support up to 3 TCI states for band B in the case of UE capability sharing. Then, the UE capability for the number of TCI states becomes 3 for band B in this case.

[0114] In another embodiment, if UE104 exhibits a value X1 for one UE capability with respect to a band pair (e.g., band A and band B), then if the UE capability is shared from band A to band B, the UE capability becomes 2 × X1 (i.e., twice X1). In other words, the first and second bands may be a band pair, and the amount of at least one capability of at least one first band and the amount of capability of at least one second band without sharing are represented as X1. The method may further include UE104 sharing at least one capability from at least one first band to at least one second band such that the shared capability of at least one second band is 2 × X1.

[0115] For example, if UE104 indicates that it supports two active BWPs with respect to a bandwidth pair (e.g., bandwidth A, bandwidth B), then if all cells with respect to bandwidth A are deactivated and UE capability is shared from bandwidth A to bandwidth B, then UE104 will support up to two active BWPs with respect to bandwidth B in this case.

[0116] In another embodiment, if UE104 exhibits a value X1 with respect to UE capability per UE, and the UE capability is shared from band A to band B, then the UE capability becomes 2 × X1 (i.e., twice X1). In other words, the amount of at least one capability in at least one first band and the amount of capability in at least one second band without sharing are set with respect to the entire UE104 and expressed as X1. The method may further include UE104 sharing at least one capability from at least one first band to at least one second band such that the shared capability of at least one second band is 2 × X1.

[0117] The above discusses only the sharing of UE capabilities from one band to another, but similar mechanisms can be applied to cases where UE capabilities from multiple bands may be shared into a single band.

[0118] In one embodiment, UE 104 is configured with cells within K bands (B1, B2, ..., B K represented as) (e.g., including at least one first band and at least one second band), and for one UE capability, UE 104 shows values X1, X2, ...., X K for each band, where K is an integer, and when K≧3, if the UE capabilities for all bands except one band (e.g., B1) are shared with this band (e.g., B1), then the UE capability, in this case, with respect to this band

Chemical formula

Chemical formula

[0119] Similarly, UE 104 is configured with K cells (C1, C2, ..., C K represented as) (e.g., including at least one first cell and at least one second cell), and for one UE capability, UE 104 shows values X1, X2, ...., X K for each cell, where K is an integer, and when K≧3, if the UE capabilities for all cells except one cell (e.g., C1) are shared with this cell (e.g., C1), then the UE capability, in this case, with respect to this cell

Chemical formula

Chemical formula

[0120] In another embodiment, UE104 has K bandwidths (B1, B2, ..., B K (represented as) (for example, including at least one first band and at least one second band) comprising cells within, where UE104 has values ​​X1, X2, ..., X for each band with respect to one UE capability. K This shows that K is an integer, and if K ≥ 3, then one bandwidth B k UE capability for all bandwidths except this bandwidth B k When shared, the UE capability in this case is X with respect to this bandwidth, where k is an integer and 1 ≤ k ≤ K. X may also be composed of the upper layer configuration. [ka] X i is bandwidth B k This is the value shown regarding UE capability. In other words, this method is used when the shared capability (X) with respect to the second bandwidth is [ka] Thus, UE104 may include sharing at least one capability with respect to all K bandwidths except the second bandwidth with respect to the second bandwidth, where k is an integer, 1 ≤ k ≤ K, and X i This is the value shown for the second bandwidth, and X is comprised of the upper layer configuration.

[0121] Similarly, UE104 has K cells (C1, C2, ..., C K (represented as) (for example, including at least one first cell and at least one second cell), and UE104 has values ​​X1, X2, ..., X for each cell with respect to one UE capability. K This shows that K is an integer, and if K ≥ 3, then one cell C kThe UE capability for all cells except this cell C k When shared, the UE capability in this case becomes X with respect to this cell, where k is an integer and 1 ≤ k ≤ K. X may also be composed of the upper layer configuration. [ka] X i is cell C k This is the value shown regarding the UE capability related to the second cell. In other words, this method is used when the shared capability (X) related to the second cell is [ka] Thus, UE104 may include sharing with the second cell at least one ability relating to all K cells except the second cell, where k is an integer, 1 ≤ k ≤ K, and X i This is the value shown for the second cell, and X is composed of the upper layer configuration.

[0122] In another embodiment, UE104 has K bandwidths (B1, B2, ..., B K If a value X1 is shown for one UE capability with respect to one band combination, which includes (for example, at least one first band and at least one second band), then one band B k The UE capability for all K bandwidths except this bandwidth B k When shared, the UE capability is, in this case, this bandwidth B k With respect to X = K·X1, where K is an integer and K ≥ 3. In other words, the method may include UE104 sharing at least one capability with respect to all K bands other than the second band with respect to the second band, such that the shared capability (X) with respect to the second band is X = K·X1.

[0123] In another embodiment, if UE104 exhibits a value X1 with respect to the UE capability per UE, and the UE capability for K-1 bands is shared in one band, then the UE capability in this case becomes X = K·X1 with respect to that band, where K is an integer and K ≥ 3. In other words, the method may also include UE104 sharing at least one capability for all K bands other than the second band with respect to the second band such that the shared capability (X) for the second band is X = K·X1.

[0124] In another embodiment, if UE capability for band A is shared with band B, UE 104 may support obtaining timing information for band B based on an SSB (Synchronization Signal Block) or other TRS (also known as a Tracking Reference Signal, CSI-RS for Tracking) transmitted over band A. Similarly, if UE capability for cell M is shared with cell N, UE 104 may support obtaining timing information for cell N based on an SSB or other TRS transmitted over cell M. In other words, the method may include UE 104 obtaining timing information for at least one second band or cell based on a Synchronization Signal Block (SSB) or other Tracking Reference Signal (TRS) or Channel State Information Reference Signal (CSI-RS) transmitted over at least one second band or cell.

[0125] Typically, UE104 may obtain timing information for one cell from the SSB or TRS transmitted in that cell. However, as shown in Figure 6 as an example, if the UE capability for bandwidth #1 is shared with bandwidth #2, UE104 may obtain timing information for cell #2 in bandwidth #2 from cell #1 in bandwidth #1.

[0126] In various embodiments, the UE 104 may provide the base station 102 with a band pair that supports UE capability sharing to the base station (e.g., a band pair including at least one first band and at least one second band). UE capability for one band in the band pair can be shared with another band in the band pair. For example, if the UE 104 provides the base station 102 with a band pair (e.g., band A, band B), then UE capability for band A can be shared with band B, and UE capability for band B can be shared with band A.

[0127] In various embodiments, the UE 104 may indicate to the base station 102 a band pair that supports UE capability sharing (e.g., a band pair including at least one first band and at least one second band) and a sharing direction to the base station (e.g., from at least one first band to at least one second band). For example, if the UE 104 indicates a band pair (band A, band B) to the base station 102 and indicates a sharing direction as sharing from band A to band B, then the UE capability with respect to band A can be shared with band B.

[0128] In various embodiments, UE104 may indicate to base station 102 a bandwidth that supports UE capability sharing, and UE104 may support UE capability sharing from one cell in the bandwidth to another cell in the bandwidth. In other words, at least one first cell and at least one second cell may be in the same bandwidth, and the method may include UE104 indicating to base station 102 a bandwidth including at least one first cell and at least one second cell that support at least one capability sharing from at least one first cell to at least one second cell, and base station 102 receiving it. For example, if UE104 indicates to base station 102 that bandwidth #1 supports UE capability sharing, base station 1012 may constitute two cells (cell #1 and cell #2) in bandwidth #1, and UE104 supports UE capability sharing from cell #1 to cell #2 and from cell #2 to cell #1.

[0129] In various embodiments, the UE 104 may provide the base station 102 with a band combination that supports UE capability sharing (e.g., including at least one first band and at least one second band), and the UE 104 may support UE capability sharing from one or more bands of the band combination to another band of the band combination.

[0130] In various embodiments, UE 104 may show base station 102 a list of UE capabilities that support sharing from one band to another. For example, UE 104 may show base station 102 that UE capabilities indicating the number of PUSCHs transmitted within a single slot support sharing from one band to another.

[0131] Similarly, UE104 may show base station 102 a list of UE capabilities that support sharing from one cell to another. For example, UE104 may show base station 102 that UE capabilities indicating the number of PUSCHs transmitted within a single slot support sharing from one cell to another.

[0132] In various embodiments, base station 102 may trigger UE capability sharing by radio resource control (RRC) signaling, media access control element (MAC-CE), or downlink control information (DCI). In other words, base station 102 may communicate to UE 104 a communication that triggers sharing by RRC signaling, MAC-CE, or DCI, and UE 104 may receive it.

[0133] In one embodiment, one MAC-CE or DCI may indicate secondary cell (SCell) deactivation, triggering UE capability sharing (e.g., from a SCell). For example, one MAC-CE indicates SCell deactivation with respect to cell A, indicating UE capability sharing from cell A to another cell.

[0134] In another embodiment, one DCI may indicate SCell quiescence and trigger UE capability sharing (e.g., from a SCell). For example, one DCI may indicate SCell quiescence with respect to cell A (i.e., the SCell enters a quiescence state) and indicate UE capability sharing from cell A to another cell.

[0135] The following is a detailed example of US capability sharing between bandwidths.

[0136] In one embodiment, if UE104 can receive one PDSCH per slot with respect to band A and two PDSCHs per slot with respect to band B, one MAC-CE or DCI deactivates all cells in band A (or one MAC-CE or DCI indicates that all cells in band A are put into a dormant state), triggering UE capability sharing for band A to band B, and then UE104 can receive three TDM (Time Domain Multiplexing) PDSCHs per slot with respect to band B in this case.

[0137] In one embodiment, if UE104 can receive one PDSCH per slot with respect to band A and one PDSCH per slot with respect to band B, one MAC-CE or DCI deactivates all cells in band A (or one MAC-CE or DCI indicates that all cells in band A are put into a dormant state), triggering UE capability sharing for band A to band B, and then UE104 can receive two FDM (Frequency Domain Multiplexing) PDSCHs per slot in this case with respect to band B.

[0138] In one embodiment, if UE104 can transmit two pushes per slot with respect to band A and one push per slot with respect to band B, one MAC-CE or DCI deactivates all cells in band A (or one MAC-CE or DCI indicates that all cells in band A are in a dormant state), triggering UE capability sharing for band A to band B, and then UE104 can transmit three TDM pushes per slot with respect to band B in this case.

[0139] In one embodiment, if UE104 can transmit one push per slot with respect to band A and one push per slot with respect to band B, one MAC-CE or DCI deactivates all cells in band A (or one MAC-CE or DCI indicates that all cells in band A are in a dormant state), triggering UE capability sharing for band A to band B, and then UE104 can transmit two FDM pushes per slot in this case with respect to band B.

[0140] In another embodiment, if UE104 can receive downlink channels / signals using up to X1 frequency resources (i.e., frequency bandwidth) for band A and up to X2 frequency resources for band B, then one MAC-CE or DCI deactivates all cells in band A (or one MAC-CE or DCI indicates that all cells in band A are dormant), triggering UE capability sharing for band A to band B, so that UE104 can then receive downlink channels / signals using up to X1+X2 frequency resources for band B. Frequency resources can be in units such as RB (resource block), RE (resource element), Hz (Hertz), etc.

[0141] In another embodiment, if UE104 can transmit uplink channels / signals using up to X1 frequency resources (i.e., frequency bandwidth) with respect to band A and up to X2 frequency resources with respect to band B, then one MAC-CE or DCI deactivates all cells in band A (or one MAC-CE or DCI indicates that all cells in band A are dormant), triggering UE capability sharing for band A to band B, and then UE104 can transmit uplink channels / signals using up to X1+X2 frequency resources with respect to band B. Frequency resources may be measured in units such as RB (resource block), RE (resource element), or Hz (Hertz).

[0142] In one embodiment, if UE104 can activate one DL BWP per cell with respect to Band A and one DL BWP per cell with respect to Band B, then one MAC-CE or DCI deactivates all cells in Band A (or one MAC-CE or DCI indicates that all cells in Band A are put into a dormant state), triggering UE capability sharing for Band A to Band B, and then UE104 can activate two DL BWPs per cell with respect to Band B in this case.

[0143] In one embodiment, if UE104 can activate one UL BWP per cell with respect to Band A and one UL BWP per cell with respect to Band B, then one MAC-CE or DCI may deactivate all cells in Band A (or one MAC-CE or DCI may indicate that all cells in Band A are put into a dormant state), triggering UE capability sharing for Band A to Band B, and then UE104 may activate two UL BWPs per cell with respect to Band B in this case.

[0144] In one embodiment, if UE104 can be configured with up to one DL BWP per cell with respect to Band A and up to two DL BWPs per cell with respect to Band B, then one MAC-CE or DCI deactivates all cells in Band A (or one MAC-CE or DCI indicates that all cells in Band A are in a dormant state), triggering UE capability sharing for Band A to Band B, and then UE104 can be configured with up to three DL BWPs per cell with respect to Band B in this case.

[0145] In one embodiment, if UE104 can be configured with up to two UL BWPs per cell with respect to Band A and up to one UL BWP per cell with respect to Band B, one MAC-CE or DCI deactivates all cells in Band A (or one MAC-CE or DCI indicates that all cells in Band A are in a dormant state), triggering UE capability sharing for Band A to Band B, and then UE104 can be configured with up to three UL BWPs per cell with respect to Band B in this case.

[0146] In one embodiment, if UE104 can monitor PDCCH candidates for up to four DCI formats per cell size with respect to bandwidth A, and up to four DCI formats per cell size with respect to bandwidth B, then one MAC-CE or DCI may deactivate all cells in bandwidth A (or one MAC-CE or DCI may indicate that all cells in bandwidth A are going into hibernation), triggering UE capability sharing for bandwidth A to bandwidth B, and then UE104 may monitor PDCCH candidates for up to eight DCI formats per cell size with respect to bandwidth B.

[0147] In one embodiment, if UE104 can monitor PDCCH candidates for a DCI format in which up to three sizes of CRC per cell are scrambled by C-RNTI with respect to bandwidth A, and can monitor PDCCH candidates for a DCI format in which up to three sizes of CRC per cell are scrambled by C-RNTI with respect to bandwidth B, then one MAC-CE or DCI may deactivate all cells in bandwidth A (or one MAC-CE or DCI may indicate that all cells in bandwidth A are going into hibernation), triggering UE capability sharing for bandwidth A to bandwidth B, and then UE104 may monitor PDCCH candidates for a DCI format in which up to six sizes of CRC per cell are scrambled by C-RNTI with respect to bandwidth B.

[0148] In one embodiment, if UE104 can monitor up to 44 PDCCH candidates per slot per cell with respect to Band A, and up to 44 PDCCH candidates per slot per cell with respect to Band B, then one MAC-CE or DCI deactivates all cells in Band A (or one MAC-CE or DCI indicates that all cells in Band A are going into hibernation), triggering UE capability sharing for Band A to Band B, and then UE104 can monitor up to 88 PDCCH candidates per slot per cell with respect to Band B.

[0149] In one embodiment, if UE104 can monitor up to 56 non-overlapping CCEs per slot per cell with respect to Band A, and up to 56 non-overlapping CCEs per slot per cell with respect to Band B, then one MAC-CE or DCI deactivates all cells in Band A (or one MAC-CE or DCI indicates that all cells in Band A are going into hibernation), triggering UE capability sharing for Band A to Band B, and then UE104 can monitor up to 112 non-overlapping CCEs per slot per cell with respect to Band B.

[0150] In one embodiment, if UE104 can support up to two active TCI (Transmission Configuration Indicator) states per cell with respect to Band A and up to four active TCI states per cell with respect to Band B, then one MAC-CE or DCI may deactivate all cells in Band A (or one MAC-CE or DCI may indicate that all cells in Band A are in a dormant state), triggering UE capability sharing for Band A to Band B, and UE104 may support up to six active TCI states per cell with respect to Band B.

[0151] In one embodiment, if UE104 can receive PDSCH with respect to cells using up to two layers with respect to band A, and can receive PDSCH with respect to cells using up to two layers with respect to band B, then one MAC-CE or DCI deactivates all cells in band A (or one MAC-CE or DCI indicates that all cells in band A are put into a dormant state), triggering UE capability sharing with respect to band A to band B, and then UE104 can receive PDSCH with respect to cells using up to four layers with respect to band B.

[0152] In one embodiment, if UE104 can transmit PUSCH using up to two layers with respect to cells with respect to Band A, and up to two layers with respect to cells with respect to Band B, then one MAC-CE or DCI deactivates all cells in Band A (or one MAC-CE or DCI indicates that all cells in Band A are in a dormant state), triggering UE capability sharing with respect to Band A to Band B, and then UE104 can transmit PUSCH using up to four layers with respect to cells with respect to Band B.

[0153] In one embodiment, if UE104 can measure or monitor with respect to cells with respect to band A (for example, for L1-RSRP measurement) using up to four SSBs or CSI-RSs, and can measure or monitor with respect to cells with respect to band B using up to four SSBs or CSI-RSs, then one MAC-CE or DCI deactivates all cells in band A (or one MAC-CE or DCI indicates that all cells in band A are in a dormant state), triggering UE capability sharing with respect to band A to band B, and then UE104 can measure or monitor with respect to cells with respect to band B using up to eight SSBs or CSI-RSs.

[0154] In one embodiment, if UE104 can be configured with up to four configured grant pushes or SPS PDSCHs with respect to cells with respect to Band A, and up to two configured grant pushes or SPS PDSCHs with respect to cells with respect to Band B, then one MAC-CE or DCI deactivates all cells in Band A (or one MAC-CE or DCI indicates that all cells in Band A are in a dormant state), triggering UE capability sharing with Band A to Band B, and UE104 can be configured with up to six configured grant pushes or SPS PDSCHs with respect to cells with respect to Band B.

[0155] In one embodiment, if UE104 can be configured with up to four configured grant pushes or SPS PDSCHs with respect to cells with respect to Band A, and up to two configured grant pushes or SPS PDSCHs with respect to cells with respect to Band B, then one MAC-CE or DCI deactivates all cells in Band A (or one MAC-CE or DCI indicates that all cells in Band A are in a dormant state), triggering UE capability sharing with Band A to Band B, and UE104 can be configured with up to six configured grant pushes or SPS PDSCHs with respect to cells with respect to Band B.

[0156] In one embodiment, if UE104 supports up to eight HARQ processes per cell with respect to bandwidth A, and UE supports up to eight HARQ processes per cell with respect to bandwidth B, one MAC-CE or DCI deactivates all cells in bandwidth A (or one MAC-CE or DCI indicates that all cells in bandwidth A are going into hibernation), triggering UE capability sharing for bandwidth A to bandwidth B, and UE104 supports up to sixteen HARQ processes per cell with respect to bandwidth B.

[0157] The following is a detailed example of US capability sharing between cells.

[0158] In one embodiment, if UE104 can receive one PDSCH per slot with respect to cell M and two PDSCHs per slot with respect to cell N, then one MAC-CE or DCI deactivates cell M (or one MAC-CE or DCI indicates that cell M is going into a dormant state), triggering UE capability sharing with cell N, and then UE104 can receive three TDM PDSCHs per slot with respect to cell N in this case.

[0159] In one embodiment, if UE104 can receive one PDSCH per slot with respect to cell M and one PDSCH per slot with respect to cell N, then one MAC-CE or DCI deactivates cell M (or one MAC-CE or DCI indicates that cell M is going into a dormant state), triggering UE capability sharing with cell N, and then UE104 can receive two FDM PDSCHs per slot with respect to cell N in this case.

[0160] In one embodiment, if UE104 can transmit two pushes per slot with respect to cell M and one push per slot with respect to cell N, then one MAC-CE or DCI deactivates cell M (or one MAC-CE or DCI indicates that cell M is going into a dormant state), triggering UE capability sharing with respect to cell N, and then UE104 can transmit three TDM pushes per slot with respect to cell N in this case.

[0161] In one embodiment, if UE104 can transmit one push per slot with respect to cell M and one push per slot with respect to cell N, then one MAC-CE or DCI deactivates cell M (or one MAC-CE or DCI indicates that cell M is going into a dormant state), triggering UE capability sharing with respect to cell N, and then UE104 can transmit two FDM pushes per slot with respect to cell N in this case.

[0162] In another embodiment, if UE104 can receive downlink channels / signals using up to X1 frequency resources (i.e., frequency bandwidth) with respect to cell M and up to X2 frequency resources with respect to cell N, then one MAC-CE or DCI deactivates cell M (or one MAC-CE or DCI indicates that cell M is dormant), triggering UE capability sharing with respect to cell N, and then UE104 can receive downlink channels / signals using up to X1+X2 frequency resources with respect to cell N. Frequency resources can be in units such as RB (resource block), RE (resource element), Hz (Hertz), etc.

[0163] In another embodiment, if UE104 can transmit uplink channels / signals using up to X1 frequency resources (i.e., frequency bandwidth) with respect to cell M and up to X2 frequency resources with respect to cell N, then one MAC-CE or DCI deactivates cell M (or one MAC-CE or DCI indicates that cell M is going into a dormant state), triggering UE capability sharing with respect to cell N, and then UE104 can transmit uplink channels / signals using up to X1+X2 frequency resources with respect to cell N. Frequency resources may be measured in units such as RB (resource block), RE (resource element), or Hz (Hertz).

[0164] In one embodiment, if UE104 can activate one DL BWP per cell with respect to cell M and one DL BWP per cell with respect to cell N, then one MAC-CE or DCI deactivates cell M (or one MAC-CE or DCI indicates that cell M is dormant), triggering UE capability sharing with cell M to cell N, and then UE104 can activate two DL BWPs per cell with respect to cell N in this case.

[0165] In one embodiment, if UE104 can activate one UL BWP per cell with respect to cell M and one UL BWP per cell with respect to cell N, then one MAC-CE or DCI deactivates cell M (or one MAC-CE or DCI indicates that cell M is dormant), triggering UE capability sharing with respect to cell N, and then UE104 can activate two UL BWPs per cell with respect to cell N in this case.

[0166] In one embodiment, if UE104 can be configured with up to one DL BWP per cell with respect to cell M and up to two DL BWPs per cell with respect to cell N, then one MAC-CE or DCI deactivates cell M (or one MAC-CE or DCI indicates that cell M is dormant), triggering UE capability sharing for cell M to cell N, and then UE104 can be configured with up to three DL BWPs per cell with respect to cell N in this case.

[0167] In one embodiment, if UE104 can be configured with up to two UL BWPs per cell with respect to cell M and up to one UL BWP per cell with respect to cell N, then one MAC-CE or DCI deactivates cell M (or one MAC-CE or DCI indicates that cell M is dormant), triggering UE capability sharing with respect to cell N, and then UE104 can be configured with up to three UL BWPs per cell with respect to cell N in this case.

[0168] In one embodiment, if UE104 can monitor PDCCH candidates for up to four DCI formats per cell with respect to cell M, and can monitor PDCCH candidates for up to four DCI formats per cell with respect to cell N, then one MAC-CE or DCI deactivates cell M (or one MAC-CE or DCI indicates that cell M is going into a dormant state), triggering UE capability sharing for cell M to cell N, and then UE104 can monitor PDCCH candidates for up to eight DCI formats per cell with respect to cell N.

[0169] In one embodiment, if UE104 can monitor PDCCH candidates for a DCI format in which up to three sizes of CRC per cell are scrambled by C-RNTI with respect to cell M, and can monitor PDCCH candidates for a DCI format in which up to three sizes of CRC per cell are scrambled by C-RNTI with respect to cell N, then one MAC-CE or DCI deactivates cell M (or one MAC-CE or DCI indicates that cell M is going into a dormant state), triggering UE capability sharing for cell M to cell N, and then UE104 can monitor PDCCH candidates for a DCI format in which up to six sizes of CRC per cell are scrambled by C-RNTI with respect to cell N.

[0170] In one embodiment, if UE104 can monitor up to 44 PDCCH candidates per slot per cell with respect to cell M, and up to 44 PDCCH candidates per slot per cell with respect to cell N, then one MAC-CE or DCI deactivates cell M (or one MAC-CE or DCI indicates that cell M is going into a dormant state), triggering UE capability sharing regarding cell M to cell N, and then UE104 can monitor up to 88 PDCCH candidates per slot per cell with respect to cell N.

[0171] In one embodiment, if UE104 can monitor up to 56 non-overlapping CCEs per slot per cell for cell M and up to 56 non-overlapping CCEs per slot per cell for cell N, then one MAC-CE or DCI deactivates cell M (or one MAC-CE or DCI indicates that cell M is going into a dormant state), triggering UE capability sharing for cell M to cell N, and then UE104 can monitor up to 112 non-overlapping CCEs per slot per cell for cell N.

[0172] In one embodiment, if UE104 can support up to two active TCI (Transmission Configuration Indicator) states per cell with respect to cell M and up to four active TCI states per cell with respect to cell N, then one MAC-CE or DCI deactivates cell M (or one MAC-CE or DCI indicates that cell M is dormant), triggering UE capability sharing for cell M to cell N, and UE104 can support up to six active TCI states per cell with respect to cell N.

[0173] In one embodiment, if UE104 can receive PDSCH with respect to cell M using up to two layers with respect to cell M and up to two layers with respect to cell N, then one MAC-CE or DCI deactivates cell M (or one MAC-CE or DCI indicates that cell M is dormant), triggering UE capability sharing with respect to cell N, and then UE104 can receive PDSCH with respect to cell N using up to four layers with respect to cell N.

[0174] In one embodiment, if UE104 can transmit a PUSCH using up to two layers with respect to cell M and up to two layers with respect to cell N, then one MAC-CE or DCI deactivates cell M (or one MAC-CE or DCI indicates that cell M is dormant), triggering UE capability sharing with respect to cell N, and then UE104 can transmit a PUSCH using up to four layers with respect to cell N.

[0175] In one embodiment, if UE104 can measure or monitor cell M with respect to cell M using up to four SSBs or CSI-RSs (for example, for L1-RSRP measurement) and cell N with respect to cell M using up to four SSBs or CSI-RSs, then one MAC-CE or DCI deactivates cell M (or one MAC-CE or DCI indicates that cell M is going into a dormant state), triggering UE capability sharing regarding cell M to cell N, and then UE104 can measure or monitor cell N with respect to cell N using up to eight SSBs or CSI-RSs.

[0176] In one embodiment, UE104 can be configured with up to four configured grant pushes or SPS PDSCHs with respect to cell M, and up to two configured grant pushes or SPS PDSCHs with respect to cell N, one MAC-CE or DCI deactivates cell M (or one MAC-CE or DCI indicates that cell M is dormant), triggering UE capability sharing with cell M to cell N, and UE104 can be configured with up to six configured grant pushes or SPS PDSCHs with respect to cell N.

[0177] In one embodiment, if UE104 can be configured with up to four configured grant pushes or SPS PDSCHs with respect to cell M and up to two configured grant pushes or SPS PDSCHs with respect to cell N, then one MAC-CE or DCI deactivates cell M (or one MAC-CE or DCI indicates that cell M is dormant), triggering UE capability sharing with respect to cell M to cell N, and UE can be configured with up to six configured grant pushes or SPS PDSCHs with respect to cell N.

[0178] In one embodiment, if UE104 supports up to eight HARQ processes per cell with respect to cell M, and UE supports up to eight HARQ processes per cell with respect to cell N, one MAC-CE or DCI deactivates cell M (or one MAC-CE or DCI indicates that cell M is going into a dormant state), triggering UE capability sharing for cell M to cell N, and UE104 supports up to sixteen HARQ processes per cell with respect to cell N.

[0179] The above description and accompanying drawings provide specific exemplary embodiments and implementations. However, the subject matter described may be embodied in a variety of different forms, and therefore, the subject matter covered or claimed is intended to be construed as not being limited to any exemplary embodiments described herein. A reasonably broad scope for the claimed or covered subject matter is intended. In particular, for example, the subject matter may be embodied as a method, device, component, system, or non-transient computer-readable medium for storing computer code. Thus, embodiments may take the form of, for example, hardware, software, firmware, storage medium, or any combination thereof. For example, the method embodiment described above may be implemented by a component, device, or system including memory and a processor by executing computer code stored in memory.

[0180] Throughout this specification and the claims, terms may have nuances implied or suggested in context beyond their expressly stated meanings. Similarly, phrases as used herein, such as “in one embodiment / implementation / example / approach,” do not necessarily refer to the same embodiment, and phrases as used herein, such as “in another embodiment / implementation / example / approach,” do not necessarily refer to a different embodiment. For example, the claimed subject matter is intended to include, in whole or in part, a combination of exemplary embodiments.

[0181] In general, technical terms can be understood, at least in part, from their use in context. For example, terms such as “and,” “or,” or “and / or,” as used herein, can have various meanings, at least in part, depending on the context in which such terms are used. Typically, when “or” is used to relate a list such as “A, B, or C,” it is intended to mean “A, B, and C,” as used here in an inclusive sense, as well as “A, B, or C,” as used here in an exclusive sense. In addition, the term “one or more,” as used herein, can be used, at least in part, depending on the context, to describe any feature, structure, or property in a singular sense, or to describe a combination of features, structures, or properties in a plural sense. Similarly, terms such as “a,” “an,” or “the” can be understood, at least in part, depending on the context, to convey a single usage or to convey multiple usages. In addition, the term “based on” can be understood not necessarily to convey an exclusive set of factors, but rather, again, at least in part, depending on the context, to allow for the presence of additional factors that are not necessarily explicitly described.

[0182] Throughout this specification, references to features, benefits, or similar terms do not imply that all features and benefits that can be realized using the Solution should be included in, or are included in, any single implementation thereof. Rather, terms referring to features and benefits should be understood to mean that specific features, benefits, or characteristics described in relation to a particular embodiment are included in at least one embodiment of the Solution. Accordingly, discussions of features and benefits, as well as similar terms, throughout this specification may, but not necessarily, refer to the same embodiment.

[0183] Furthermore, the described features, benefits, and characteristics of this solution may be combined in any preferred manner in one or more embodiments. Those skilled in the art will recognize, in light of the description herein, that this solution may be practiced without one or more of the specific features or benefits of a particular embodiment. In other instances, additional features and benefits may be recognized in certain embodiments, which may not be present in all embodiments of this solution.

Claims

1. A method carried out by a wireless terminal device for handling transmission, wherein the method is Sharing at least one capability from at least one first band or cell to at least one second band or cell, To provide capability sharing information to wireless access network nodes and Methods that include...

2. Providing the capability sharing information to the wireless access network node includes indicating to the wireless access network node support for one bandwidth combination including the at least one first bandwidth and the at least one second bandwidth. The aforementioned method, The wireless access network node receives the configuration of at least one second band and does not receive the configuration of at least one first band. Sharing the at least one capability from the at least one first bandwidth to the at least one second bandwidth The method according to claim 1, including the method described in claim 1.

3. Receiving from the wireless access network node the configuration of one or more cells in at least one first band and the configuration of one or more cells in at least one second band, It is determined that all of the one or more cells within the at least one first bandwidth are deactivated. Sharing the at least one capability from the at least one first bandwidth to the at least one second bandwidth The method according to claim 1, including the method described in claim 1.

4. Receiving the configuration of at least one first cell and the configuration of at least one second cell from the wireless access network node, The determination that at least one of the first cells is deactivated, Sharing the aforementioned at least one capability from the at least one first cell to the at least one second cell Includes, The method according to claim 1, wherein the at least one first cell and the at least one second cell are located in the same bandwidth or two separate bandwidths.

5. Receiving from the wireless access network node the configuration of one or more cells in at least one first band and the configuration of one or more cells in at least one second band, Determining that all of the one or more cells within the at least one first bandwidth are in a dormant state, Sharing the at least one capability from the at least one first bandwidth to the at least one second bandwidth The method according to claim 1, including the method described in claim 1.

6. Receiving the configuration of at least one first cell and the configuration of at least one second cell from the wireless access network node, Determining that at least one of the first cells is in a dormant state, Sharing the aforementioned at least one capability from the at least one first cell to the at least one second cell Includes, The method according to claim 1, wherein the at least one first cell and the at least one second cell are located in the same bandwidth or two separate bandwidths.

7. Receiving from the wireless access network node the configuration of one or more cells in at least one first band and the configuration of one or more cells in at least one second band, Determining that all of the one or more cells within the at least one first bandwidth are in a discontinuous reception (DRX) off state, Sharing the at least one capability from the at least one first bandwidth to the at least one second bandwidth The method according to claim 1, including the method described in claim 1.

8. Receiving the configuration of at least one first cell and the configuration of at least one second cell from the wireless access network node, Determining that at least one of the first cells is in a discontinuous reception (DRX) off state, Sharing the aforementioned at least one capability from the at least one first cell to the at least one second cell Includes, The method according to claim 1, wherein the at least one first cell and the at least one second cell are located in the same bandwidth or two separate bandwidths.

9. Receiving from the wireless access network node the configuration of one or more cells in at least one first band and the configuration of one or more cells in at least one second band, Determining that all of the one or more cells within the at least one first bandwidth are not scheduled within a given time unit, During the aforementioned time unit, the at least one capability is shared from the at least one first bandwidth to the at least one second bandwidth. The method according to claim 1, including the method described in claim 1.

10. Receiving from the wireless access network node the configuration of one or more cells in at least one first band and the configuration of one or more cells in at least one second band, It is determined that all of the one or more cells within the at least one first bandwidth are configured as downlinks within a given time unit, During the aforementioned time unit, at least one uplink-related capability is shared from the at least one first band to the at least one second band. The method according to claim 1, including the method described in claim 1.

11. Receiving from the wireless access network node the configuration of one or more cells in at least one first band and the configuration of one or more cells in at least one second band, It is determined that all of the one or more cells within the at least one first bandwidth are configured as uplinks within a given time unit, During the aforementioned time unit, at least one downlink-related capability is shared from the at least one first band to the at least one second band. The method according to claim 1, including the method described in claim 1.

12. Receiving the configuration of at least one first cell and the configuration of at least one second cell from the wireless access network node, The determination that at least one of the first cells is not scheduled within a given time unit, During the aforementioned time unit, the at least one capability is shared from the at least one first cell to the at least one second cell. Includes, The method according to claim 1, wherein the at least one first cell and the at least one second cell are located in the same bandwidth or two separate bandwidths.

13. Receiving the configuration of at least one first cell and the configuration of at least one second cell from the wireless access network node, The determination that at least one of the first cells is configured as a downlink within a given time unit, During the aforementioned time unit, at least one uplink-related capability is shared from the at least one first cell to the at least one second cell. Includes, The method according to claim 1, wherein the at least one first cell and the at least one second cell are located in the same bandwidth or two separate bandwidths.

14. Receiving the configuration of at least one first cell and the configuration of at least one second cell from the wireless access network node, The determination that at least one of the first cells is configured as an uplink within a given time unit, During the aforementioned time unit, at least one downlink-related capability is shared from the at least one first cell to the at least one second cell. Includes, The method according to claim 1, wherein the at least one first cell and the at least one second cell are located in the same bandwidth or two separate bandwidths.

15. The at least one first bandwidth comprises two or more first bandwidths, and the method is Receiving from the aforementioned wireless access network node the configuration of one or more cells in two or more first bands and the configuration of one or more cells in at least one second band, It is determined that all of the one or more cells within the two or more first bandwidths are deactivated. Sharing the aforementioned at least one capability from at least one of the two or more first bandwidths to the aforementioned at least one second bandwidth. The method according to claim 1, including the method described in claim 1.

16. The at least one first bandwidth comprises two or more first bandwidths, and the method is Receiving from the aforementioned wireless access network node the configuration of one or more cells in two or more first bands and the configuration of one or more cells in at least one second band, Determining that all of the one or more cells within the two or more first bandwidths are in a dormant state, Sharing the aforementioned at least one capability from at least one of the two or more first bandwidths to the aforementioned at least one second bandwidth. The method according to claim 1, including the method described in claim 1.

17. The at least one first bandwidth comprises two or more first bandwidths, and the method is Receiving from the aforementioned wireless access network node the configuration of one or more cells in two or more first bands and the configuration of one or more cells in at least one second band, Determining that all of the one or more cells within the two or more first bandwidths are in a discontinuous reception (DRX) off state, Sharing the aforementioned at least one capability from at least one of the two or more first bandwidths to the aforementioned at least one second bandwidth. The method according to claim 1, including the method described in claim 1.

18. The at least one first bandwidth comprises two or more first bandwidths, and the method is Receiving from the aforementioned wireless access network node the configuration of one or more cells in two or more first bands and the configuration of one or more cells in at least one second band, To determine that all of the one or more cells within the two or more first bandwidths are not scheduled within a given time unit, During the aforementioned time unit, the at least one capability is shared from at least one of the two or more first bandwidths to the at least one second bandwidth. The method according to claim 1, including the method described in claim 1.

19. The at least one first cell comprises two or more first cells, and the method is Receiving the configuration of the two or more first cells and the configuration of the at least one second cell from the wireless access network node, The decision to deactivate two or more of the first cells, Sharing the aforementioned at least one capability from at least one of the two or more first cells to the aforementioned at least one second cell Includes, The method according to claim 1, wherein the two or more first cells and the at least one second cell are in the same bandwidth or separate bandwidths.

20. The at least one first cell comprises two or more first cells, and the method is Receiving the configuration of the two or more first cells and the configuration of the at least one second cell from the wireless access network node, Determining that two or more of the aforementioned first cells are in a dormant state, Sharing the aforementioned at least one capability from at least one of the two or more first cells to the aforementioned at least one second cell Includes, The method according to claim 1, wherein the two or more first cells and the at least one second cell are in the same bandwidth or separate bandwidths.

21. The at least one first cell comprises two or more first cells, and the method is Receiving the configuration of the two or more first cells and the configuration of the at least one second cell from the wireless access network node, Determining that two or more of the aforementioned first cells are in a discontinuous reception (DRX) off state, Sharing the aforementioned at least one capability from at least one of the two or more first cells to the aforementioned at least one second cell Includes, The method according to claim 1, wherein the two or more first cells and the at least one second cell are in the same bandwidth or separate bandwidths.

22. The at least one first cell comprises two or more first cells, and the method is Receiving the configuration of the two or more first cells and the configuration of the at least one second cell from the wireless access network node, The determination that the two or more first cells mentioned above are not scheduled within a given time unit, During the aforementioned time unit, the at least one capability is shared from at least one of the two or more first cells to the at least one second cell. Includes, The method according to claim 1, wherein the two or more first cells and the at least one second cell are in the same bandwidth or separate bandwidths.

23. The aforementioned at least one capability is, The number of physical downlink shared channels (PDSCHs) received within a single slot, The number of physical uplink shared channels (PUCHs) transmitted within a single slot, Downlink (DL) bandwidth, Uplink (UL) bandwidth, Number of Active Bandwidth Portions (BWPs), Number of configured BWPs, Number of Downlink Control Information (DCI) sizes, Number of Blind Decoding / Control Channel Element (BD / CCE) Budgets, Number of Transmission Configuration Indication (TCI) states, Number of multi-input multi-output (MIMO) layers, Number of synchronization signal blocks (SSB) or channel status information reference signals (CSI-RS), Number of configured grant PUCH or semi-persistent scheduling (SPS) PDSCH, The number of Hybrid Automated Retransmission Request (HARQ) processes, or Timing information based on SSB or Tracking Reference Signal (TRS) The method according to any one of claims 1 to 22, comprising at least one of the following.

24. The amount of the at least one capacity from the at least one first bandwidth or cell is represented as X1, and the amount of the at least one second bandwidth or cell capacity without sharing is represented as X2. The method according to claim 1, comprising sharing the at least one capability from the at least one first bandwidth or cell to the at least one second bandwidth or cell such that the shared capability of the at least one second bandwidth or cell is X, where X = X1 + X2.

25. The method according to claim 24, wherein the at least one capability from the at least one first band or cell and the at least one capability of the at least one second band or cell is the number of physical downlink shared channels (PDSCHs) per slot, and the wireless terminal device receives X = X1 + X2 frequency domain multiplexing (FDM) PDSCHs per slot with respect to the at least one second band or cell.

26. The method according to claim 24, wherein the at least one capability from the at least one first band or cell and the at least one capability of the at least one second band or cell are the number of downlink (DL) bandwidth portions (BWPs) per cell, and the wireless terminal device can activate X = X1 + X2 DL BWPs per cell with respect to the at least one second band or cell.

27. The amount of the capacity of the at least one first bandwidth or cell is represented as X1, and the amount of the capacity of the at least one second bandwidth or cell without sharing is represented as X2. The method according to claim 1, comprising sharing the at least one capability from the at least one first band or cell to the at least one second band or cell such that the shared capability of the at least one second band or cell is X, where X2 < X ≤ X1 + X2, and X is configured by a higher layer configuration.

28. The first bandwidth and the second bandwidth are a bandwidth pair, and the amount of the at least one capacity of the at least one first bandwidth and the amount of the capacity of the at least one second bandwidth without sharing are represented as X1. The method according to claim 1, comprising sharing the at least one capability from the at least one first band to the at least one second band such that the shared capability of the at least one second band is 2 × X1.

29. The amount of the at least one capacity of the at least one first band and the amount of the at least one capacity of the at least one second band without sharing are set with respect to the entire wireless terminal device and are represented as X1. The method according to claim 1, comprising sharing the at least one capability from the at least one first band to the at least one second band such that the shared capability of the at least one second band is 2 × X1.

30. The wireless terminal device comprises K cells within a bandwidth, each of which has at least one first bandwidth and at least one second bandwidth, and the wireless terminal device has a value X for each bandwidth with respect to at least one capability. １ , X ２ , . . . , X Ｋ To show this, K is an integer and K ≥ 3, The method further includes the shared capability (X) with respect to the second bandwidth, [Math 1] The method according to claim 1, comprising sharing the at least one capability with respect to all K bandwidths excluding the second bandwidth with respect to the second bandwidth, where k is an integer and 1 ≤ k ≤ K.

31. The wireless terminal device comprises K cells, each including at least one first cell and at least one second cell, and the wireless terminal device has a value X for each cell with respect to at least one capability. １ , X ２ , . . . , X Ｋ To show this, K is an integer and K ≥ 3, The method further includes the shared capacity (X) relating to the second cell, [Math 2] The method according to claim 1, comprising sharing the at least one capability with respect to all K cells other than the second cell, where k is an integer and 1 ≤ k ≤ K.

32. The wireless terminal device is configured with cells in K bands including the at least one first band and the at least one second band, and the wireless terminal device shows values X １ , X ２ ,..., X Ｋ for each band with respect to the at least one capability, where K is an integer and K ≥ 3 The method further includes the shared capability (X) with respect to the second bandwidth, [Math 3] This includes sharing the at least one capability with respect to all K bands excluding the second band with respect to the second band, where k is an integer, 1 ≤ k ≤ K, and X ｉ The method according to claim 1, wherein is a value indicated for the second bandwidth, and X is configured by a higher layer configuration.

33. The wireless terminal device comprises K cells, each including at least one first cell and at least one second cell, and the wireless terminal device has a value X for each cell with respect to at least one capability. １ , X ２ , . . . , X Ｋ To show this, K is an integer and K ≥ 3, The method further includes the shared capacity (X) relating to the second cell, [Math 4] This includes sharing the at least one capability of all K cells except the second cell with the second cell, where k is an integer, 1 ≤ k ≤ K, and X ｉ The method according to claim 1, wherein is a value shown relating to the second cell, and X is configured by a higher layer configuration.

34. The wireless terminal device is configured with K combinations of bands, including the at least one first band and the at least one second band, and the wireless terminal device has a value X for each band with respect to the at least one capability. １ To show this, K is an integer and K ≥ 3, The method according to claim 1, further comprising sharing the at least one capability with respect to all K bands other than the second band with respect to the second band such that the shared capability (X) with respect to the second band is X = K * X1.

35. The wireless terminal device is configured with K bandwidths, including the at least one first bandwidth and the at least one second bandwidth, and the wireless terminal device has a value X per bandwidth with respect to the at least one capability. １ To show this, K is an integer and K ≥ 3, The method according to claim 1, further comprising sharing the at least one capability with respect to all K bands other than the second band with respect to the second band such that the shared capability (X) with respect to the second band is X = K * X1.

36. The method according to claim 1, comprising obtaining timing information relating to the at least one second band or cell based on the synchronization signal block (SSB) or other tracking reference signal (TRS) or channel state information reference signal (CSI-RS) transmitted over the at least one second band or cell.

37. The wireless access network node is provided with a band pair including the at least one first band and the at least one second band. The method according to claim 1, wherein the at least one capability with respect to one band in the band pair can be shared with another band in the band pair.

38. The method according to claim 1, wherein the wireless access network node is provided with a band pair including the at least one first band and the at least one second band, and a sharing direction from the at least one first band to the at least one second band.

39. The at least one first cell and the at least one second cell are in the same bandwidth. The method according to claim 1, wherein the method includes providing the wireless access network node with the bandwidth comprising the at least one first cell and the at least one second cell as bandwidth supporting the sharing of the at least one capability from the at least one first cell to the at least one second cell.

40. The wireless access network node is provided with a bandwidth combination comprising the at least one first bandwidth and the at least one second bandwidth. The method according to claim 1, wherein the at least one capability relating to one or more bands in the band combination can be shared with another band in the band combination.

41. The method according to claim 1, further comprising providing the wireless access network node with a list of capabilities including the at least one capability that the wireless terminal device can share from one band or cell to another band or cell.

42. The method according to claim 1, comprising receiving communications from the radio access network node that trigger the sharing by radio resource control (RRC) signaling, media access control element (MAC-CE), or downlink control information (DCI).

43. The method according to claim 42, wherein the communication from the wireless access network node indicates secondary cell (SCell) deactivation and triggers the sharing from the SCell.

44. The method according to claim 24, wherein the communication from the wireless access network node indicates a secondary cell (SCell) pause and triggers the sharing from the SCell.

45. A method carried out by a wireless access network node, the method is Receiving indications of capability sharing information from wireless terminal devices, To communicate with the wireless terminal device in accordance with the capability sharing information. Methods that include...

46. Receiving the indication of capability sharing information from the wireless terminal device includes receiving an indication of support for one bandwidth combination including the at least one first bandwidth and the at least one second bandwidth. The aforementioned method, The method according to claim 45, comprising transmitting to the wireless terminal device the configuration of at least one second band of the wireless terminal device, and not transmitting the configuration of at least one first band of the wireless terminal device.

47. The method according to claim 45, comprising transmitting to the wireless terminal device the configuration of one or more cells in at least one first band and the configuration of one or more cells in at least one second band, wherein all of the one or more cells in at least one first band of the wireless terminal device are deactivated.

48. The method according to claim 45, comprising transmitting the configuration of at least one first cell and the configuration of at least one second cell to the wireless terminal device, wherein the at least one first cell of the wireless terminal device is deactivated.

49. The method according to claim 45, comprising transmitting to the wireless terminal device the configuration of one or more cells in at least one first band and the configuration of one or more cells in at least one second band, wherein all of the one or more cells in at least one first band of the wireless terminal device are in a dormant state.

50. The method according to claim 45, comprising transmitting the configuration of at least one first cell and the configuration of at least one second cell to the wireless terminal device, wherein the at least one first cell of the wireless terminal device is in a dormant state.

51. The method according to claim 45, comprising transmitting to the wireless terminal device the configuration of one or more cells in at least one first band and the configuration of one or more cells in at least one second band, wherein all of the one or more cells in at least one first band of the wireless terminal device are in a discontinuous reception (DRX) off state.

52. The method according to claim 45, comprising transmitting the configuration of at least one first cell and the configuration of at least one second cell to the wireless terminal device, wherein the at least one first cell of the wireless terminal device is in a discontinuous reception (DRX) off state.

53. The method according to claim 45, comprising transmitting to the wireless terminal device the configuration of one or more cells in at least one first band and the configuration of one or more cells in at least one second band, wherein all of the one or more cells in at least one first band of the wireless terminal device are not scheduled within a time unit.

54. The method according to claim 45, comprising transmitting to the wireless terminal device the configuration of one or more cells in at least one first band and the configuration of one or more cells in at least one second band, wherein all of the one or more cells in at least one first band are configured as downlinks within a certain time unit.

55. The method according to claim 45, comprising transmitting to the wireless terminal device the configuration of one or more cells in at least one first band and the configuration of one or more cells in at least one second band, wherein all of the one or more cells in at least one first band are configured as uplinks within a certain time unit.

56. The method according to claim 45, comprising transmitting to the wireless terminal device the configuration of at least one first cell and the configuration of at least one second cell, wherein the at least one first cell of the wireless terminal device is not scheduled within a time unit.

57. The method according to claim 45, comprising transmitting to the wireless terminal device the configuration of at least one first cell and the configuration of at least one second cell, wherein the at least one first cell is configured as a downlink within a certain time unit.

58. The method according to claim 45, comprising transmitting to the wireless terminal device the configuration of at least one first cell and the configuration of at least one second cell, wherein the at least one first cell is configured as an uplink within a certain time unit.

59. The method according to claim 45, comprising transmitting to the wireless terminal device the configuration of one or more cells in two or more first bands and the configuration of one or more cells in at least one second band, wherein all of the one or more cells in the two or more first bands of the wireless terminal device are deactivated.

60. The method according to claim 45, comprising transmitting to the wireless terminal device the configuration of one or more cells in two or more first bands and the configuration of one or more cells in at least one second band, wherein all of the one or more cells in the two or more first bands of the wireless terminal device are in a dormant state.

61. The method according to claim 45, comprising transmitting to the wireless terminal device the configuration of one or more cells in two or more first bands and the configuration of one or more cells in at least one second band, wherein all of the one or more cells in the two or more first bands of the wireless terminal device are in a discontinuous reception (DRX) off state.

62. The method according to claim 45, comprising transmitting to the wireless terminal device the configuration of one or more cells in two or more first bands and the configuration of one or more cells in at least one second band, wherein all of the one or more cells in the two or more first bands of the wireless terminal device are not scheduled within a time unit.

63. The method according to claim 45, comprising transmitting the configuration of two or more first cells and the configuration of at least one second cell to the wireless terminal device, wherein the two or more first cells of the wireless terminal device are deactivated.

64. The method according to claim 45, comprising transmitting the configuration of two or more first cells and the configuration of at least one second cell to the wireless terminal device, wherein the two or more first cells of the wireless terminal device are in a dormant state.

65. The method according to claim 45, comprising transmitting the configuration of two or more first cells and the configuration of at least one second cell to the wireless terminal device, wherein the two or more first cells of the wireless terminal device are in a discontinuous reception (DRX) off state.

66. The method according to claim 45, comprising transmitting to the wireless terminal device the configuration of two or more first cells and the configuration of at least one second cell, wherein the two or more first cells of the wireless terminal device are not scheduled within a time unit.

67. The method according to claim 45, comprising receiving an indication of a band pair from the wireless terminal device, wherein at least one capability with respect to one band in the band pair can be shared with another band in the band pair.

68. The method according to claim 67, comprising receiving a shared direction from the wireless terminal device.

69. The method according to claim 45, comprising receiving an indication from the wireless terminal device of a bandwidth including at least one first cell and at least one second cell as a bandwidth supporting the sharing of at least one capability from the at least one first cell to the at least one second cell.

70. The method according to claim 45, comprising receiving an indication from the wireless terminal device of a band combination comprising at least one first band and at least one second band, wherein at least one capability relating to one or more bands in the band combination can be shared with another band in the band combination.

71. The method according to claim 45, comprising receiving an indication from the wireless terminal device of a list of capabilities that the wireless terminal device may share from one band or cell to another band or cell.

72. The method according to claim 45, comprising communicating a communication to the wireless terminal device that triggers the sharing by wireless resource control (RRC) signaling, media access control element (MAC-CE), or downlink control information (DCI).

73. The method according to claim 72, wherein the communication indicates the deactivation of a secondary cell (SCell) and triggers the sharing from the SCell.

74. The method according to claim 72, wherein the communication indicates a secondary cell (SCell) pause and triggers the sharing from the SCell.

75. The capability sharing information includes an indication that at least one capability may be shared between at least a first bandwidth or cell and a second bandwidth or cell, and the at least one capability is The number of physical downlink shared channels (PDSCHs) received within a single slot, The number of physical uplink shared channels (PUCHs) transmitted within a single slot, Downlink (DL) bandwidth, Uplink (UL) bandwidth, Number of Active Bandwidth Portions (BWPs), Number of configured BWPs, Number of Downlink Control Information (DCI) sizes, Number of Blind Decoding / Control Channel Element (BD / CCE) Budgets, Number of Transmission Configuration Indication (TCI) states, Number of multi-input multi-output (MIMO) layers, Number of synchronization signal blocks (SSB) or channel status information reference signals (CSI-RS), Number of configured grant PUCH or semi-persistent scheduling (SPS) PDSCH, The number of Hybrid Automated Retransmission Request (HARQ) processes, or Timing information based on SSB or Tracking Reference Signal (TRS) The method according to any one of claims 45-74, comprising at least one of the following.

76. A device for wireless communication, wherein the device comprises a processor configured to perform the method described in any of claims 1 to 75.

77. A non-transient computer-readable medium, wherein the non-transient computer-readable medium stores code, and when executed by a processor, the code causes the processor to implement the method according to any one of claims 1 to 75.

Images