UE capability sharing

Abstract

A method of handling transmissions in a wireless cellular access network comprises determining to share at least one capability from at least one first frequency band or cell with at least one second frequency band or cell, and indicating capability sharing information to a radio access network node. This provides a flexible mechanism to enable UE capability sharing, thereby improving UE capability utilization efficiency.

Description

Technical Field

[0001] The present disclosure generally relates to handling transmissions in a wireless cellular access network, and more particularly to mechanisms for sharing user equipment (UE) capabilities. Background Art

[0002] Based on existing Long Term Evolution (LTE) and New Radio (NR) systems, a user equipment (UE) (i.e., a wireless terminal device) indicates its UE capabilities to a base station (i.e., a wireless network access node). The base station sets configurations and schedules transmissions according to the corresponding UE capabilities. Most UE capabilities are defined per frequency band or per cell. Even if a cell within a frequency band is not active, not configured, or not scheduled, the UE cannot share its capabilities with other active cells within the same frequency band or another frequency band. For example, a basic UE capability is to receive one Physical Downlink Shared Channel (PDSCH) per cell per time slot. If a UE is configured with two cells, the UE has the capability to receive two PDSCHs per time slot (where one PDSCH is received for each cell). However, if one of these cells is deactivated, in the case of existing LTE and NR systems, the UE can still only receive one PDSCH per time slot in the active cell, and the UE capabilities for other frequency bands are wasted. Summary of the Invention

[0003] The present disclosure relates to handling transmissions in a wireless cellular access network, and more particularly to a mechanism for sharing UE capabilities. Various example embodiments are particularly directed to a new method for sharing UE capabilities of a cell or frequency band that has not been active, configured, or scheduled for a period of time to another active, configured, or scheduled cell or frequency band. According to various embodiments, the new method can reclaim UE capabilities from a cell or frequency band that has not been active, configured, or scheduled for a certain period of time to another cell or frequency band. Thus, the utilization efficiency of UE capabilities can be improved.

[0004] In some exemplary embodiments, a method for processing transmissions performed by a wireless terminal device includes: sharing at least one capability from at least one first frequency band or at least one first cell to at least one second frequency band or at least one second cell; and indicating capability sharing information to a radio access network node. Indicating the capability sharing information to the radio access network node may include: indicating support for a frequency band combination including at least one first frequency band and at least one second frequency band to the radio access network node. The method may include: receiving a configuration of at least one second frequency band from the radio access network node and not receiving a configuration of at least one first frequency band; and sharing at least one capability from at least one first frequency band to at least one second frequency band.

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

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

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

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

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

[0010] In some exemplary embodiments, which may be combined with any other exemplary embodiments disclosed herein, at least one first cell includes two or more first cells. The method may include: receiving configurations of two or more first cells and at least one second cell from a radio access network node; determining that two or more first cells are 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 the at least one second cell are in the same frequency band or in separate frequency bands. The method may further include: determining that two or more first cells are 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 the at least one second cell are in the same frequency band or in separate frequency bands. The method may further include: determining that two or more first cells are in a discontinuous reception (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 the at least one second cell are in the same frequency band or in separate frequency bands. The method may further include: determining that two or more first cells are not scheduled within a 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 the time unit, wherein the two or more first cells and the at least one second cell are in the same frequency band or in separate frequency bands.

[0011] In some exemplary embodiments, which may be combined with any other exemplary embodiments disclosed herein, a magnitude of at least one capability of at least one first frequency band or at least one first cell is represented as X1, and wherein a magnitude of a capability of at least one second frequency band or at least one second cell is represented as X2. The method may include: sharing at least one capability from at least one first frequency band or at least one first cell to at least one second frequency band or at least one second cell such that a magnitude of the shared capability of at least one second frequency band or at least one second cell is X, where X = X1 + X2. In some embodiments, at least one capability of at least one first frequency band or at least one first cell and a capability of at least one second frequency band or at least one second cell are the number of physical downlink shared channels (PDSCHs) per time slot, wherein the wireless terminal device receives X = X1 + X2 frequency domain multiplexing (FDM) PDSCHs per time slot for at least one second frequency band or at least one second cell. In some embodiments, at least one capability of at least one first frequency band or at least one first cell and a capability of at least one second frequency band or at least one second cell are the number of downlink (DL) bandwidth parts (BWPs) per cell, wherein the wireless terminal device may activate X = X1 + X2 DL BWPs per cell for at least one second frequency band or at least one second cell. The method may further include: sharing at least one capability from at least one first frequency band or at least one first cell to at least one second frequency band or at least one second cell such that the shared capability of at least one second frequency band or at least one second cell is X, where X2 < X ≤ X1 + X2, and wherein X is configured by a higher layer configuration.

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

[0013] In some exemplary embodiments, which may be combined with any other exemplary embodiments disclosed herein, a wireless terminal device is configured with cells in K frequency bands, the K frequency bands including at least one first frequency band and at least one second frequency band, and the wireless terminal device indicates at least one value of ability X1, X2, ..., X for each frequency band K , where K is an integer and K≥3. The method includes: sharing at least one ability for all frequency bands among the K frequency bands except the second frequency band to the second frequency band, such that the shared ability (X) for the second frequency band is where k is an integer and 1≤k≤K. Similarly, the wireless terminal device is configured with K cells, the K cells including at least one first cell and at least one second cell, and where the wireless terminal device indicates at least one value of ability X1, X2, ..., X for each cell K , where K is an integer and K≥3. The method may include: sharing at least one ability for all cells among the K cells except the second cell to the second cell, such that the shared ability (X) for the second cell is where k is an integer and 1≤k≤K.

[0014] In some exemplary embodiments, which may be combined with any other exemplary embodiments disclosed herein, a wireless terminal device is configured with cells in K frequency bands, the K frequency bands including at least one first frequency band and at least one second frequency band, and where the wireless terminal device indicates at least one value of ability X1, X2, ..., X for each frequency band K , where K is an integer and K≥3. The method may include: sharing at least one ability for all frequency bands among the K frequency bands except the second frequency band to the second frequency band, such that the shared ability (X) for the second frequency band is, and where k is an integer and 1≤k≤K, and X i is the indicated value for the second frequency band, and where X is configured by higher layer configuration. Similarly, the wireless terminal device is configured with K cells, the K cells including at least one first cell and at least one second cell, and where the wireless terminal device indicates at least one value of ability X1, X2, ..., X for each cell K , where K is an integer and K≥3. The method may include: sharing at least one ability for all cells among the K cells except the second cell to the second cell, such that the shared ability (X) for the second cell is, and where k is an integer and 1≤k≤K, and X i is the indicated value for the second cell, and where X is configured by higher layer configuration.

[0015] In some exemplary embodiments, which may be combined with any other exemplary embodiments disclosed herein, a wireless terminal device is configured with a combination of K frequency bands, the combination of K frequency bands including at least one first frequency band and at least one second frequency band, and wherein the wireless terminal device has at least one capability indication value X1 for each frequency band, where K is an integer and K≥3. The method may include: sharing at least one capability for all frequency bands among the K frequency bands except the second frequency band to the second frequency band, such that the shared capability (X) for the second frequency band is X = K·X1. Similarly, a wireless terminal device is configured with K frequency bands, the K frequency bands including at least one first frequency band and at least one second frequency band, and wherein the wireless terminal device has at least one per-wireless terminal device value X1 for each frequency band, where K is an integer and K≥3. The method may include: sharing at least one capability for all frequency bands among the K frequency bands except the second frequency band to the second frequency band, such that the shared capability (X) for the second frequency band is X = K·X1.

[0016] In some exemplary embodiments, which may be combined with any other exemplary embodiments disclosed herein, the method may include: obtaining timing information for at least one second frequency band or at least one second cell based on a Synchronization Signal Block (SSB), or other Tracking Reference Signal (TRS), or Channel State Information Reference Signal (CSI-RS) transmitted on at least one second frequency band or at least one second cell. The method may include: indicating to a radio access network node a frequency band pair including at least one first frequency band and at least one second frequency band, wherein at least one capability for one frequency band in the frequency band pair may be shared to the other frequency band in the frequency band pair. The method may include: indicating to a radio access network node a frequency band pair including at least one first frequency band and at least one second frequency band, and a sharing direction from at least one first frequency band to at least one second frequency band. The method may include: indicating to a radio access network node that a frequency band including at least one first cell and at least one second cell is a frequency band supporting 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 within the same frequency band. The method may include: indicating to a radio access network node a frequency band combination including at least one first frequency band and at least one second frequency band, wherein at least one capability for one or more frequency bands in the frequency band combination may be shared to the other frequency band in the frequency band combination. The method may include: indicating to a radio access network node a capability list that includes at least one capability that a wireless terminal device may share from one frequency band or cell to another frequency band or cell. The method may include: receiving, via Radio Resource Control (RRC) signaling, a Medium Access Control Control Element (MAC-CE), or Downlink Control Information (DCI), communication from a radio access network node triggering sharing. In various embodiments, the communication from the radio access network node indicates deactivation of a Secondary Cell (SCell) and triggers sharing from the SCell. In other embodiments, the communication from the radio access network node indicates that the SCell is in a dormant state and triggers sharing from the SCell.

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

[0018] In some exemplary embodiments, which may be combined with any other exemplary embodiments disclosed herein, the method may include: transmitting to a wireless terminal device the configurations of one or more cells in at least one first frequency band and the configurations of one or more cells in at least one second frequency band, wherein none of the one or more cells in at least one first frequency band of the wireless terminal device are scheduled within a time unit. The method may include: transmitting to a wireless terminal device the configurations of one or more cells in at least one first frequency band and the configurations of one or more cells in at least one second frequency band, wherein all of the one or more cells in at least one first frequency band are configured as downlink within a time unit. The method may include: transmitting to a wireless terminal device the configurations of one or more cells in at least one first frequency band and the configurations of one or more cells in at least one second frequency band, wherein all of the one or more cells in at least one first frequency band are configured as uplink within a time unit. The method may include: transmitting to a wireless terminal device the configuration of at least one first cell and the configuration of at least one second cell, wherein at least one first cell of the wireless terminal device is not scheduled within a time unit. The method may include: transmitting to a wireless terminal device the configuration of at least one first cell and the configuration of at least one second cell, wherein at least one first cell is configured as downlink in a time unit. The method may include: transmitting to a wireless terminal device the configuration of at least one first cell and the configuration of at least one second cell, wherein at least one first cell is configured as uplink in a time unit.

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

[0020] In some exemplary embodiments, which may be combined with any other exemplary embodiments disclosed herein, the method may include: receiving an indication of a frequency band pair from a wireless terminal device, wherein at least one capability for one frequency band in the frequency band pair may be shared to another frequency band in the frequency band pair. The method may include: receiving a sharing direction from the wireless terminal device. The method may include: receiving an indication from the wireless terminal device that a frequency band including at least one first cell and at least one second cell is a frequency band that supports sharing of at least one capability from at least one first cell to at least one second cell. The method may include: receiving an indication of a frequency band combination including at least one first frequency band and at least one second frequency band, wherein at least one capability for one or more frequency bands in the frequency band combination may be shared to another frequency band in the frequency band combination. The method may include: receiving an indication of a list of capabilities that the wireless terminal device may share from one frequency band or cell to another frequency band or cell. The method may include: transmitting a communication triggering the sharing to the wireless terminal device via radio resource control (RRC) signaling, media access control control element (MAC-CE), or downlink control information (DCI). In some embodiments, the communication instructs a secondary cell (SCell) to deactivate and triggers sharing from the SCell. In some embodiments, the communication instructs the secondary cell (SCell) to go to sleep and triggers sharing from the SCell.

[0021] In some exemplary embodiments, which may be combined with any other exemplary embodiments disclosed herein, the at least one capability includes at least one of the following: the number of Physical Downlink Shared Channels (PDSCH) received in a time slot; the number of Physical Uplink Shared Channels (PUSCH) transmitted in a time slot; Downlink (DL) bandwidth; Uplink (UL) bandwidth; the number of activated Bandwidth Parts (BWP); the number of configured BWPs; the number of Downlink Control Information (DCI) sizes; the number of Blind decoding / Control Channel Element (BD / CCE) budgets; the number of Transmission Configuration Indication (TCI) states; the number of Multiple Input Multiple Output (MIMO) layers; the number of Synchronization Signal Blocks (SSB) or Channel State Information Reference Signals (CSI-RS); the number of configured grant PUSCH or Semi-Persistent Scheduling (SPS) PDSCH; the number of Hybrid Automatic Repeat reQuest (HARQ) processes; timing information based on SSB or Tracking Reference Signal (TRS).

[0022] In some other embodiments, a device for wireless communication is disclosed, for example, a network device. The network device may include one or more processors and one or more memories, wherein the one or more processors are configured to read computer code from the one or more memories to implement any of the above methods. The device for wireless communication may be a radio access network node (e.g., a base station) or a wireless terminal device (e.g., a UE).

[0023] In still some other embodiments, a computer program product is disclosed. The computer program product may include a non-transitory computer-readable medium storing computer code, which, when executed by one or more processors, causes the one or more processors to implement any of the above methods.

[0024] The above embodiments and other aspects and alternatives of their embodiments are described in more detail in the following drawings, detailed description, and claims. Description of the Drawings

[0025] Figure 1Shows a radio access network with exemplary uplink, downlink, and control channel configurations.

[0026] Figure 2 Shows Figure 1 various example processing components of a wireless terminal device and a radio access network node.

[0027] Figure 3 Shows a timing diagram explaining aspects of UE capability sharing according to various embodiments.

[0028] Figure 4 Shows another timing diagram explaining aspects of UE capability sharing according to various embodiments.

[0029] Figure 5 Shows yet another timing diagram explaining aspects of UE capability sharing according to various embodiments.

[0030] Figure 6 Shows yet another timing diagram explaining aspects of UE capability sharing according to various embodiments. Detailed Description

[0031] The techniques and examples of the embodiments and / or examples described in this disclosure can be used to facilitate air radio resource allocation, configuration, and signaling in a radio access network, as well as the operation configuration of UEs and / or base stations in a radio access network. The term "exemplary" is used to mean "an example of...", and unless otherwise stated, does not imply an ideal or preferred example, embodiment, or example. Section headings are used in this disclosure to facilitate understanding of the disclosed embodiments and are not intended to limit the techniques disclosed in the section to the corresponding section. The disclosed embodiments can also be implemented in various different forms, and thus, the scope of this disclosure or the claimed subject matter is intended to be interpreted as not limited to any of the embodiments set forth below. The various embodiments can be implemented as a method, device, component, system, or non-transitory computer-readable medium. Accordingly, the embodiments of this disclosure can, for example, take the form of hardware, software, firmware, or any combination thereof.

[0032] This disclosure relates to handling transmissions in a wireless cellular access network and specifically relates to a mechanism for sharing UE capabilities. Various example embodiments provide configuration and signaling to enable a UE to share capabilities from a first frequency band or a first cell to a second frequency band or a second cell. In this way, UE capabilities can be reclaimed or reallocated from a cell or frequency band that is not active, not configured, or not scheduled during a certain period of time to another cell or frequency band. Thus, the utilization efficiency of UE capabilities can be improved.

[0033] Overview of Wireless Network

[0034] A wireless communication network may include: a radio access network for providing network access to wireless terminal devices, and a core network for routing data between access networks or between a wireless network and other types of data networks. In the radio access network, radio resources are provided for allocation and used for transmitting data and control information. Figure 1 An exemplary radio access network 100 is shown, which includes a wireless access network node (WANN) or radio base station 102 (referred to herein as a radio base station, base station, radio access node, radio access network node, or WANN) and a wireless terminal device or user equipment (UE) 104 (referred to herein as user equipment, UE, terminal device, or wireless terminal device). The radio access network node or radio base station 102 and the wireless terminal device or user equipment 104 communicate with each other via over-the-air (OTA) radio communication resources 106. The radio access network 100 may be implemented as, for example, a 2G, 3G, 4G / LTE, or 5G cellular radio access network. Correspondingly, the base station 102 may be implemented as a 2G base station, 3G NodeB, LTE eNB, or 5G New Radio (NR) gNB. The user equipment 104 may be implemented as a mobile or fixed communication device equipped with a mobile identification module for accessing the base station 102. The user equipment 104 may include, but is not limited to: mobile phones, laptop computers, tablet computers, personal digital assistants, wearable devices, distributed remote sensor devices, and desktop computers. Alternatively, the radio access network 100 may be implemented as other types of radio access networks, such as Wi-Fi (Wireless Fidelity), Bluetooth, ZigBee, and WiMax (World Interoperability for Microwave Access) networks.

[0035] Figure 2 Further shown is Figure 1Example processing components of the WANN 102 and the UE 104. The UE 104 can include, for example, a transceiver circuit 206 (also referred to as transceiver 206) coupled to one or more antennas 208 to enable wireless communication with the WANN 102 (or other UEs). The transceiver circuit 206 can also be coupled to a processor 210, which can also be coupled to a memory 212 or other storage device. The memory 212 can be transient or non-transient and can store computer instructions or code therein, which when read and executed by the processor 210, cause the processor 210 to implement the various functions, methods, and processes of the UE 104 described herein. The memory 212 can also be utilized and allocated for buffering UL and DL transmissions in each frequency band / carrier. The memory 212 can include multiple memory modules assigned to different functions (e.g., program memory, baseband memory, and / or RF memory, to name just a few examples). Similarly, the WANN 102 can include a transceiver circuit 214 (also referred to as transceiver 214) coupled to one or more antennas 216, which can include various forms of antenna towers 218 to enable wireless communication with the UE 104. The transceiver circuit 214 can be coupled to one or more processors 220, which can also be coupled to a memory 222 or other storage device. The memory 222 can be transient or non-transient and can store instructions or code therein, which when read and executed by the processor 220, cause the processor 220 to implement the various functions, methods, and processes of the WANN 102 described herein.

[0036] Wireless Communication Resource Scheduling / Signaling

[0037] Back to Figure 1, the radio communication resources 106 for the air interface may include a combination of frequency, time, and / or space communication resources, which are organized into various resource units or elements in frequency, time, and / or space. The radio communication resources 106 in the frequency domain may include a portion of a licensed radio frequency band, a portion of an unlicensed radio frequency band, or a mixed portion of both a licensed radio frequency band and an unlicensed radio frequency band. The radio communication resources 106 available for carrying radio communication signals between the base station 102 and the user equipment 104 may be further 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 shared channel (PDSCH) 114. Similarly, the physical uplink channel 120 may further include a physical uplink control channel (PUCCH) 122 and a physical uplink shared channel (PUSCH) 124. For simplicity, other types of downlink channels and uplink channels are not shown in Figure 1 , but are all within the scope of the present 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 (referred to herein as downlink control information (DCI) messages or uplink control information (UCI) messages). The shared (shared between data and control information) channels PDSCH 114 and PUSCH 124 may be allocated and used to transfer downlink data transmissions 118 and uplink data transmissions 128 between the base station 102 and the user equipment 104.

[0038] The allocation and configuration of radio communication resources associated with data channels (e.g., PDSCH and PUSCH) can be provided by one or more resource scheduling DCIs carried in the PDCCH. The PDCCH can be shared by multiple UEs in the access network. In various methods, a specific UE can be configured to perform a blind decoding process on a preconfigured UE-specific SearchSpace (USS) to detect and identify the payload of the resource scheduling DCI specific to the specific UE carried in the PDCCH. The blind decoding can be performed at a preconfigured monitoring occasion of the PDCCH associated with the USS. Such a monitoring occasion can be referred to as a set of PDCCH candidates. Each PDCCH candidate can be associated with a set of Control Channel Elements (CCEs). The UE can specifically use the Radio Network Temporary Identifier (RNTI) of the UE to decode the PDCCH candidate. The RNTI can be used to demask the CRC (Cyclic Redundancy Check) of the PDCCH candidate. If no CRC error is detected, the UE determines that the PDCCH candidate carries its own control information. Then, the UE can process the DCI and extract the resource allocation information regarding the PDSCH and / or PUSCH to receive and / or transmit data.

[0039] Description of New UE Capability Sharing Mechanism

[0040] According to the present disclosure, a method for enabling a UE to share capabilities between frequency bands or cells is disclosed. According to various embodiments, a method for processing transmissions performed by a wireless terminal device or UE 104 is disclosed. As part of this method, the UE 104 can share at least one capability from at least one first frequency band or at least one first cell to at least one second frequency band or at least one second cell. The UE 104 can also indicate the capability sharing information to a radio access network node or base station 102. Similarly, a method performed by a radio access network node or base station 102 includes receiving an indication of the capability sharing information from the UE 104 and communicating with the UE 104 according to the capability sharing information.

[0041] In various methods, if UE 104 indicates support for a frequency band combination including frequency band A and frequency band B, and UE 104 is configured with a cell in frequency band A but not configured with a cell in frequency band B, then the UE capabilities for frequency band B can be shared with frequency band A. Thus, according to various embodiments, indicating the capability sharing information to base station 102 includes indicating to a radio access network node support for a frequency band combination including at least one first frequency band and at least one second frequency band. The method may further include: base station 102 transmitting a configuration of at least one second frequency band and not transmitting a configuration of at least one first frequency band; UE 104 receiving a configuration of at least one second frequency band and not receiving a configuration of at least one first frequency band, and sharing at least one capability from at least one first frequency band to at least one second frequency band.

[0042] In another example, if UE 104 is configured with a cell in frequency band A and a cell in frequency band B, and if all cells in frequency band B are deactivated, then the UE capabilities reported for frequency band B can be shared to frequency band A. Thus, the method may include base station 102 transmitting, and UE 104 receiving: a configuration of one or more cells in at least one first frequency band and a configuration of one or more cells in at least one second frequency band, wherein all of the one or more cells in at least one first frequency band of the wireless terminal device are deactivated. Then, UE 104 may determine that all of the one or more cells in at least one first frequency band are deactivated, and share at least one capability from at least one first frequency band to at least one second frequency band.

[0043] Similarly, if UE 104 is configured with cells including cell M and cell N, if cell N is deactivated, then the UE capabilities for cell N can be shared to cell M. Cell M and cell N may be in the same frequency band or in different frequency bands. Thus, the method may include base station 102 transmitting, and UE 104 receiving: a configuration of at least one first cell and a configuration of at least one second cell, wherein at least one first cell of the wireless terminal device is deactivated. Then, UE 104 may determine that at least one first cell is deactivated, and share 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 frequency band or in two different frequency bands.

[0044] Reference Figure 3 By way of example, UE 104 is configured with cell #1 and cell #2 in frequency band #1 and frequency band #2 respectively. If cell #1 is deactivated, then the UE capabilities for cell #1 can be shared to cell #2.

[0045] A cell can be activated and deactivated (e.g., via a MAC-CE (Media Access Control Control Element)). If the cell is activated, the UE 104 can perform DL and / or UL transmissions in the cell. If the cell is deactivated, the UE does not need to perform DL or UL transmissions except for some regular measurements in the cell.

[0046] In another embodiment, if the UE 104 is configured with a cell in Band A and a cell in Band B, and if all the cells in Band B are in the dormant state, the UE capabilities reported for Band B can be shared to Band A. Thus, the method can include the base station 102 transmitting, and the UE 104 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, wherein all of the one or more cells in at least one first band of the wireless terminal device are in the dormant state. Then, the UE 104 can determine that all of the one or more cells in at least one first band are in the dormant state, and share at least one capability from at least one first band to at least one second band.

[0047] Similarly, if the UE 104 is configured with a cell including Cell M and Cell N, and if Cell N is in the dormant state, the UE capabilities for Cell N can be shared to Cell M. Cell M and Cell N can be in the same band or in different bands. Thus, the method can include the base station 102 transmitting, and the UE 104 receiving: the configuration of at least one first cell and the configuration of at least one second cell, wherein at least one first cell of the wireless terminal device is in the dormant state. Then, the UE 104 can determine that at least one first cell is in the dormant state, and share 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 band or in two different bands.

[0048] A cell can be in the dormant state or the non-dormant state. The base station 102 can indicate that the cell enters the dormant state via high-layer signaling or by switching the activated BWP (Bandwidth Part) in the cell to a dormant BWP. If the cell is in the non-dormant state, the UE 104 can perform DL and / or UL transmissions in the cell. If the cell is in the dormant state, the UE 104 does not need to perform DL or UL transmissions except for some periodic measurements in the cell.

[0049] In another embodiment, if the UE 104 is configured with a cell in Band A and a cell in Band B, and if all the cells in Band B are in the discontinuous reception (DRX) off state, the UE capabilities reported for Band B can be shared to Band A. Thus, the method may include transmission by the base station 102 and reception by the UE 104: of 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 the discontinuous reception (DRX) off state. Then, the UE 104 may determine that all of the one or more cells in at least one first band are in the discontinuous reception (DRX) off state, and share at least one capability from at least one first band to at least one second band.

[0050] Similarly, if the UE 104 is configured with cells including Cell M and Cell N, and if Cell N is in the DRX off state, the UE capabilities for Cell N can be shared to Cell M. Cell M and Cell N may be in the same band or in different bands. Thus, the method may include transmission by the base station 102 and reception by the UE 104: of the configuration of at least one first cell and the configuration of at least one second cell, wherein at least one first cell of the wireless terminal device is in the DRX off state. Then, the UE 104 may determine that at least one first cell is in the DRX off state, and share at least one capability from at least one first cell to at least one second cell, wherein the at least one first cell and the at least one second cell are in the same band or in two different bands.

[0051] During the DRX off state, the UE 104 at least does not need to monitor the PDCCH (Physical Downlink Control Channel) for the C-RNTI (Cell Radio Network Temporary Identifier). In this case, at least the UE capabilities related to the PDCCH can be shared from the cell in the DRX off state to another cell. During the DRX on state, the UE 104 may at least need to monitor the PDCCH for the C-RNTI. In this case, the UE 104 may stop sharing the UE capabilities from this cell to another cell.

[0052] Reference Figure 4 By way of example, the UE 104 is configured with Cell #1 and Cell #2 in Band #1 and Band #2 respectively. If Cell #1 enters the DRX off state, the UE capabilities for Cell #1 can be shared to Cell #2.

[0053] In another embodiment, if UE 104 is configured with a cell in Band A and a cell in Band B, and if the cells in Band B are all not scheduled within a time unit (e.g., a time slot), the UE capabilities reported for Band B can be shared to Band A within this time unit. Thus, the method may include the base station 102 transmitting, and the UE 104 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, wherein the one or more cells in at least one first band of the wireless terminal device are all not scheduled within a time unit. Then, the UE 104 may determine that the one or more cells in at least one first band are all not scheduled within a time unit, and share at least one capability from at least one first band to at least one second band during this time unit.

[0054] In another embodiment, if UE 104 is configured with a cell in Band A and a cell in Band B, and if the cells in Band B are all configured as downlink within a time unit (e.g., a time slot), the uplink-related UE capabilities reported for Band B can be shared to Band A during this time unit. Thus, the method may include the base station 102 transmitting, and the UE 104 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, wherein the one or more cells in at least one first band are all configured as downlink within a time unit. Then, the UE 104 may determine that the one or more cells in at least one first band are all configured as downlink within a time unit, and share at least one uplink-related capability from at least one first band to at least one second band during this time unit.

[0055] In another embodiment, if UE 104 is configured with a cell in Band A and a cell in Band B, and if the cells in Band B are all configured as uplink within a time unit (e.g., a time slot), the downlink-related UE capabilities reported for Band B can be shared to Band A during this time unit. Thus, the method may include the base station 102 transmitting, and the UE 104 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, wherein the one or more cells in at least one first band are all configured as downlink within a time unit. Then, the UE 104 may determine that the one or more cells in at least one first band are all configured as uplink within a time unit, and share at least one downlink-related capability from at least one first band to at least one second band during this time unit.

[0056] Similarly, if the UE 104 is configured with cells including cell M and cell N, if cell N is not scheduled within a time unit (e.g., a time slot), the UE capabilities for cell N can be shared to cell M during this time unit. Cell M and cell N can be in the same frequency band or in different frequency bands. Thus, the method can include the base station 102 transmitting, and the UE 104 receiving: the configuration of at least one first cell and the configuration of at least one second cell, wherein at least one first cell of the wireless terminal device is not scheduled within a time unit. Then, the UE 104 can determine that at least one first cell is not scheduled within a time unit, and share at least one capability from at least one first cell to at least one second cell during this time unit, wherein at least one first cell and at least one second cell are in the same frequency band or in two different frequency bands.

[0057] When the UE 104 is not scheduled to transmit an uplink for a cell within a time unit (e.g., a time slot), the UE 104 does not transmit an uplink during this time unit. At least the UE capabilities related to the uplink can be shared to another frequency band or cell.

[0058] When the UE 104 is not scheduled to receive a downlink for a cell within a time unit (e.g., a time slot), the UE 104 does not receive a downlink during this time unit. At least the UE capabilities related to the downlink can be shared to another frequency band or cell.

[0059] In another embodiment, if the UE 104 is configured with cells including cell M and cell N, if cell M is configured as a downlink within a time unit (e.g., a time slot), the UE capabilities related to the uplink for cell M can be shared to cell N within this time unit. Thus, the method can include the base station 102 transmitting, and the UE 104 receiving: the configuration of at least one first cell and the configuration of at least one second cell, wherein at least one first cell is configured as a downlink within a time unit. Then, the UE 104 can determine that at least one first cell is configured as a downlink within the time unit, and share at least one uplink-related capability from at least one first cell to at least one second cell during this time unit, wherein at least one first cell and at least one second cell are in the same frequency band or in two different frequency bands.

[0060] In another embodiment, if UE 104 is configured with cells including cell M and cell N, and if cell M is configured as an uplink in a time unit (e.g., a time slot), the UE capabilities related to the downlink of cell M can be shared to cell N within that time unit. Thus, the method may include the base station 102 transmitting, and the UE 104 receiving: the configurations of one or more cells in at least one first frequency band and the configurations of one or more cells in at least one second frequency band, where all of the one or more cells in the at least one first frequency band are configured as downlinks in a time unit. Then, the UE 104 may determine that at least one first cell is configured as an uplink in the time unit and share at least one downlink-related capability from the at least one first cell to at least one second cell during that time unit, where the at least one first cell and the at least one second cell are in the same frequency band or in two different frequency bands.

[0061] In various embodiments, a time unit may refer to a frame, a sub-frame, a time slot, a mini-slot, a PDCCH monitoring occasion, a PDSCH transmission occasion, a PUSCH transmission occasion, a CSI-RS transmission occasion, etc. in the time domain. A frame is typically equal to 10 ms. A sub-frame is typically equal to 1 ms. A time slot depends on the sub-carrier spacing and may be equal to 1 ms, 0.5 ms, 0.25 ms, 0.125 ms, or other values. A time slot typically contains 14 or 12 symbols. A mini-slot typically contains several symbols (e.g., 2, 4, or 7 symbols). A PDCCH monitoring occasion typically does not exceed 3 symbols. According to the base station scheduling or high-layer configuration, the PDSCH transmission occasion, the PUSCH transmission occasion, and the CSI-RS transmission occasion are typically equal to several symbols.

[0062] Reference Figure 5 As an example, the UE 104 may be configured with two cells, e.g., cell #1 in frequency band #1 and cell #2 in frequency band #2. In this example, the UE 104 may receive at most 1 PDSCH in each time slot in each cell. In cell #1, a PDSCH is scheduled in time slots 1 and 3 respectively. However, in time slot 2, no PDSCH is scheduled in cell #1. In this case, the UE capabilities can be shared from cell #1 to cell #2, i.e., the UE 104 can receive 2 PDSCHs in time slot 2 in cell #2.

[0063] Although only sharing of UE capabilities from one frequency band to another has been discussed above, a similar mechanism can be applied to the case of sharing UE capabilities from multiple frequency bands to one frequency band. In the following example, the UE 104 may be configured with a frequency band combination including K different frequency bands, where K is an integer and K≥3.

[0064] In one embodiment, if all the cells in all the frequency bands except frequency band A among the K frequency bands are deactivated, the UE capabilities can be shared from all the frequency bands except frequency band A among the K frequency bands to frequency band A. For example, if UE 104 is configured with a frequency band combination including frequency band A, frequency band B, and frequency band C, and if all the cells in frequency bands B and C are deactivated, the UE capabilities can be shared from frequency bands B and C to frequency band A. In this way, the method may include at least one first frequency band including two or more first frequency bands, and the base station 102 transmits, and UE 104 receives: the configurations of one or more cells in two or more first frequency bands and the configurations of one or more cells in at least one second frequency band, wherein one or more cells in two or more first frequency bands of the wireless terminal device are all deactivated. Then, UE 104 may determine that one or more cells in two or more first frequency bands are all deactivated, and share at least one capability from at least one of the two or more first frequency bands to at least one second frequency band.

[0065] In another embodiment, if all the cells in all the frequency bands except frequency band A among the K frequency bands are in the dormant state, the UE capabilities can be shared from all the frequency bands except frequency band A among the K frequency bands to frequency band A. For example, if UE 104 is configured with a frequency band combination including frequency band A, frequency band B, and frequency band C, and if all the cells in frequency bands B and C are in the dormant state, the UE capabilities can be shared from frequency bands B and C to frequency band A. In this way, the method may include at least one first frequency band including two or more first frequency bands, and the base station 102 transmits, and UE 104 receives: the configurations of one or more cells in two or more first frequency bands and the configurations of one or more cells in at least one second frequency band, wherein one or more cells in two or more first frequency bands of the wireless terminal device are all in the dormant state. Then, UE 104 may determine that one or more cells in two or more first frequency bands are all in the dormant state, and share at least one capability from at least one of the two or more first frequency bands to at least one second frequency band.

[0066] In another embodiment, if all the cells in all the frequency bands except frequency band A among the K frequency bands are in the DRX off state, the UE capabilities can be shared from all the frequency bands except frequency band A among the K frequency bands to frequency band A. For example, if UE 104 is configured with a frequency band combination including frequency band A, frequency band B, and frequency band C, and if all the cells in frequency bands B and C are in the DRX off state, the UE capabilities can be shared from frequency bands B and C to frequency band A. In this way, the method may include at least one first frequency band including two or more first frequency bands, and the base station 102 transmits, and UE 104 receives: the configurations of one or more cells in two or more first frequency bands and the configurations of one or more cells in at least one second frequency band, where one or more cells in two or more first frequency bands of the wireless terminal device are all in the DRX off state. Then, UE 104 can determine that one or more cells in two or more first frequency bands are all in the DRX off state, and share at least one capability from at least one of the two or more first frequency bands to at least one second frequency band.

[0067] In another embodiment, if all the cells in all the frequency bands except frequency band A among the K frequency bands are not scheduled within a time unit, the UE capabilities can be shared from all the frequency bands except frequency band A among the K frequency bands to frequency band A during that time unit. For example, if UE 104 is configured with a frequency band combination including frequency band A, frequency band B, and frequency band C, and if all the cells in frequency bands B and C are not scheduled within a time unit, the UE capabilities can be shared from frequency bands B and C to frequency band A during that time unit. In this way, the method may include at least one first frequency band including two or more first frequency bands, and the base station 102 transmits, and UE 104 receives: the configurations of one or more cells in two or more first frequency bands and the configurations of one or more cells in at least one second frequency band, where one or more cells in two or more first frequency bands of the wireless terminal device are not scheduled within a time unit. Then, UE 104 can determine that one or more cells in two or more first frequency bands are not scheduled within a time unit, and share at least one capability from at least one of the two or more first frequency bands to at least one second frequency band during that time unit.

[0068] Similar to the manner discussed above with respect to multiple frequency bands, although only the sharing of UE capabilities from one cell to another cell has been discussed above, a similar mechanism can be applied to the case of sharing UE capabilities from multiple cells to one cell. In the following example, UE 104 may be configured with K cells, where K is an integer and K≥3.

[0069] In one embodiment, if all the cells among the K cells except cell M are deactivated, the UE capabilities can be shared from all the cells among the K cells except cell M to cell M. For example, if UE 104 is configured with cell M, cell N, and cell P, and if cell N and cell P are deactivated, the UE capabilities can be shared from cell N and cell P to cell M. In this way, the method may include at least one first cell including two or more first cells; the base station 102 transmits, and the UE 104 receives: the configurations of two or more first cells and the configuration of at least one second cell, where two or more first cells of the wireless terminal device are deactivated. Then, the UE 104 can determine that two or more first cells are deactivated, and share at least one capability from at least one of the two or more first cells to at least one second cell, where the two or more first cells and the at least one second cell are in the same frequency band or in separate frequency bands.

[0070] In another embodiment, if all the cells among the K cells except cell M are in the dormant state, the UE capabilities can be shared from all the cells among the K cells except cell M to cell M. For example, if UE 104 is configured with cell M, cell N, and cell P, and if cell N and cell P are in the dormant state, the UE capabilities can be shared from cell N and cell P to cell M. In this way, the method may include at least one first cell including two or more first cells; the base station 102 transmits, and the UE 104 receives: the configurations of two or more first cells and the configuration of at least one second cell, where two or more first cells of the wireless terminal device are in the dormant state. Then, the UE 104 can determine that two or more first cells are in the dormant state, and share at least one capability from at least one of the two or more first cells to at least one second cell, where the two or more first cells and the at least one second cell are in the same frequency band or in separate frequency bands.

[0071] In another embodiment, if all the cells among the K cells except cell M are in the DRX off state, the UE capabilities can be shared from all the cells among the K cells except cell M to cell M. For example, if UE 104 is configured with cell M, cell N, and cell P, and if cell N and cell P are in the DRX off state, the UE capabilities can be shared from cell N and cell P to cell M. Thus, the method may include at least one first cell including two or more first cells; the base station 102 transmits, and the UE 104 receives: the configurations of two or more first cells and the configuration of at least one second cell, wherein two or more first cells of the wireless terminal device are in the DRX off state. Then, the UE 104 can determine that two or more first cells are in the DRX off state, and share 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 the at least one second cell are in the same frequency band or in separate frequency bands.

[0072] In another embodiment, if all of the K cells except cell M are not scheduled within a time unit, the UE capabilities can be shared from all the cells among the K cells except cell M to cell M during the time unit. For example, if UE 104 is configured with cell M, cell N, and cell P, and if cell N and cell P are not scheduled within a time unit, the UE capabilities can be shared from cell N and cell P to cell M within the time unit. Thus, the method may include at least one first cell including two or more first cells; the base station 102 transmits, and the UE 104 receives: the configurations of two or more first cells and the configuration of at least one second cell, wherein two or more first cells of the wireless terminal device are not scheduled within a time unit. Then, the UE 104 can determine that two or more first cells are not scheduled within a time unit, and share at least one capability from at least one of the two or more first cells to at least one second cell during the time unit, wherein the two or more first cells and the at least one second cell are in the same frequency band or in separate frequency bands.

[0073] According to various embodiments disclosed herein, the configuration of a cell may include the configuration for a downlink carrier and / or an uplink carrier, for example, including the frequency position / bandwidth for the downlink carrier and / or the uplink carrier. The configuration of a cell may also include detailed channel / signal configurations, such as PDSCH / PUSCH configurations. Other configurations for the cell may also be considered.

[0074] According to various embodiments disclosed herein, at least the following UE capabilities can be shared from one frequency band to another frequency band, or from one cell to another cell:

[0075] ● The number of Physical Downlink Shared Channels (PDSCH) received within one time slot;

[0076] ● The number of Physical Uplink Shared Channels (PUSCH) transmitted within one time slot;

[0077] ● Downlink (DL) bandwidth;

[0078] ● Uplink (UL) bandwidth;

[0079] ● The number of activated Bandwidth Parts (BWPs);

[0080] ● The number of configured BWPs;

[0081] ● The number of Downlink Control Information (DCI) sizes;

[0082] ● The number of Blind Decoding / Control Channel Elements (BD / CCEs) budgets;

[0083] ● The number of Transmission Configuration Indicator (TCI) states;

[0084] ● The number of Multiple-Input Multiple-Output (MIMO) layers;

[0085] ● The number of Synchronization Signal Blocks (SSBs) or Channel State Information Reference Signals (CSI-RSs);

[0086] ● The number of configured grant PUSCH or Semi-Persistent Scheduling (SPS) PDSCH;

[0087] ● The number of Hybrid Automatic Repeat reQuest (HARQ) processes;

[0088] ● Timing information based on SSB or Tracking Reference Signal (TRS).

[0089] Downlink-related UE capabilities can at least include some or all of the following items:

[0090] ● The number of Physical Downlink Shared Channels (PDSCH) received within one time slot;

[0091] ● Downlink (DL) bandwidth;

[0092] ● The number of activated Bandwidth Parts (BWPs), e.g., the number of activated DL BWPs;

[0093] ● The number of configured BWPs, e.g., the number of configured DL BWPs;

[0094] ● Number of downlink control information (DCI) sizes;

[0095] ● Number of blind decoding / control channel element (BD / CCE) budgets;

[0096] ● Number of transmission configuration indicator (TCI) states;

[0097] ● Number of multiple-input multiple-output (MIMO) layers;

[0098] ● Number of synchronization signal blocks (SSBs) or channel state information reference signals (CSI-RSs);

[0099] ● Number of configured grants for PUSCH or semi-persistent scheduling (SPS) PDSCH;

[0100] ● Number of hybrid automatic repeat request (HARQ) processes;

[0101] ● Timing information based on SSB or tracking reference signal (TRS).

[0102] UE capabilities related to the uplink may at least include some or all of the following items:

[0103] ● Number of physical uplink shared channels (PUSCHs) transmitted within one time slot;

[0104] ● Uplink (UL) bandwidth;

[0105] ● Number of active bandwidth parts (BWPs), e.g., number of active UL BWPs;

[0106] ● Number of configured BWPs, e.g., number of configured UL BWPs;

[0107] ● Number of transmission configuration indicator (TCI) states;

[0108] ● Number of multiple-input multiple-output (MIMO) layers;

[0109] ● Number of configured grants for PUSCH or semi-persistent scheduling (SPS) PDSCH;

[0110] ● Number of hybrid automatic repeat request (HARQ) processes;

[0111] ● Timing information based on SSB or tracking reference signal (TRS).

[0112] In various embodiments, the UE 104 may indicate a value of a UE capability for frequency band A (e.g., X1) and a UE capability indication value for (non-shared) frequency band B (e.g., X2). If the UE capability for frequency band A is shared to frequency band B, then in some examples, the UE capability for frequency band B becomes X = X1 + X2. In other words, the magnitude of at least one capability of at least one first frequency band or at least one first cell may be represented as X1, and the magnitude of at least one capability of at least one second frequency band or at least one second cell that is not shared may be represented as X2. The method may include: sharing at least one capability from at least one first frequency band or at least one first cell to at least one second frequency band or at least one second cell such that the shared capability of at least one second frequency band or at least one second cell is X, where X = X1 + X2. The following are specific examples according to this embodiment.

[0113] In one example, if the UE 104 can receive 1 PDSCH per time slot for frequency band A and can receive 2 PDSCHs per time slot for frequency band B, and if the UE capability for frequency band A is shared to frequency band B, then in this case, the UE 104 can receive 3 TDM (Time Domain Multiplexing) PDSCHs per time slot for frequency band B. Multiple 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.

[0114] In another example, if the UE 104 can receive 1 PDSCH per time slot for frequency band A and can receive 1 PDSCH per time slot for frequency band B, and if the UE capability for frequency band A is shared to frequency band B, then in this case, the UE 104 can receive 2 FDM (Frequency Domain Multiplexing) PDSCHs per time slot for frequency band B. Multiple 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 of at least one first frequency band or at least one first cell and the capability of at least one second frequency band or at least one second cell are the number of physical downlink shared channels (PDSCHs) per time slot, where the wireless terminal device receives X = X1 + X2 frequency domain multiplexing (FDM) PDSCHs per time slot for at least one second frequency band or at least one second cell.

[0115] In another example, if UE 104 can transmit 2 PUSCHs per time slot for frequency band A and can transmit 1 PUSCH per time slot for frequency band B, then if the UE capability for frequency band A is shared to frequency band B, in this case, UE 104 can transmit 3 TDM PUSCHs per time slot for frequency band B. Multiple TDM PUSCHs mean that these PUSCHs do not overlap with each other in the time domain. These PUSCHs may or may not overlap in the frequency domain. In this case, X1 = 2, X2 = 1, and X = X1 + X2 = 3.

[0116] In another example, if UE 104 can transmit 1 PUSCH per time slot for frequency band A and can transmit 1 PUSCH per time slot for frequency band B, then if the UE capability for frequency band A is shared to frequency band B, in this case, UE 104 can transmit 2 FDM PUSCHs per time slot for frequency band B. FDM PUSCH means that these PUSCHs do not overlap with each other in the frequency domain. These PUSCHs may or may not overlap in the time domain. In this case, X1 = 1, X2 = 1, and X = X1 + X2 = 2.

[0117] In another example, if UE 104 can receive a downlink channel / signal using at most X1 frequency resources (i.e., frequency bandwidth) for frequency band A and can receive a downlink channel / signal using at most X2 frequency resources for frequency band B, if the UE capability for frequency band A is shared to frequency band B, then UE 104 can receive a downlink channel / signal using at most X1 + X2 frequency resources for frequency band B. The frequency resources can be in units of RB (Resource Block), RE (Resource Element), Hz (Hertz), etc. For example, if UE 104 can receive PDSCH using at most 50 MHz (mega Hertz) of frequency resources for frequency band A and can receive PDSCH using at most 50 MHz of frequency resources for frequency band B, if the UE capability for frequency band A is shared to frequency band B, then UE 104 can receive PDSCH using at most 100 MHz of frequency resources for frequency band B.

[0118] In another example, if the UE 104 can transmit uplink channels / signals using at most X1 frequency resources (i.e., frequency bandwidth) for frequency band A, and can transmit uplink channels / signals using at most X2 frequency resources for frequency band B, if the UE capabilities for frequency band A are shared to frequency band B, then the UE 104 can transmit uplink channels / signals using at most X1 + X2 frequency resources for frequency band B. The frequency resources can be in units of RB (resource block), RE (resource element), Hz (Hertz), etc. For example, if the UE 104 can transmit PUSCH using at most 50 MHz (mega Hertz) of frequency resources for frequency band A, and can transmit PUSCH using at most 50 MHz of frequency resources for frequency band B, if the UE capabilities for frequency band A are shared to frequency band B, then the UE 104 can transmit PUSCH using at most 100 MHz of frequency resources for frequency band B.

[0119] In another example, if the UE 104 can activate 1 DL BWP per cell for frequency band A, and can activate 1 DL BWP per cell for frequency band B, if the UE capabilities for frequency band A are shared to frequency band B, then in this case, the UE 104 can activate 2 DL BWPs per cell for frequency band B. In this case, X1 = 1, X2 = 1, and X = X1 + X2 = 2. In other words, at least one capability of at least one first frequency band or at least one first cell and the capabilities of at least one second frequency band or at least one second cell are the number of downlink (DL) bandwidth parts (BWPs) per cell, where the wireless terminal device can activate X = X1 + X2 DL BWPs per cell for at least one second frequency band or at least one second cell.

[0120] In another example, if the UE 104 can activate 1 UL BWP per cell for frequency band A, and can activate 1 UL BWP per cell for frequency band B, if the UE capabilities for frequency band A are shared to frequency band B, then in this case, the UE 104 can activate 2 UL BWPs per cell for frequency band B. In this case, X1 = 1, X2 = 1, and X = X1 + X2 = 2.

[0121] In another example, if the UE 104 can be configured with at most 1 DL BWP per cell for frequency band A, and can be configured with at most 2 DL BWPs per cell for frequency band B, if the UE capabilities for frequency band A are shared to frequency band B, then in this case, the UE 104 can be configured with at most 3 DL BWPs per cell for frequency band B. In this case, X1 = 1, X2 = 2, and X = X1 + X2 = 3.

[0122] In another example, if UE 104 can be configured with up to 2 UL BWPs per cell for frequency band A and can be configured with up to 1 UL BWP per cell for frequency band B, and if the UE capabilities for frequency band A are shared to frequency band B, then in this case, UE 104 can be configured with up to 3 UL BWPs per cell for frequency band B. In this case, X1 = 2, X2 = 1, and X = X1 + X2 = 3.

[0123] In another example, if UE 104 can monitor PDCCH candidates for DCI formats of up to 4 sizes per cell for frequency band A and can monitor PDCCH candidates for DCI formats of up to 4 sizes per cell for frequency band B, and if the UE capabilities for frequency band A are shared to frequency band B, then UE 104 can monitor PDCCH candidates for DCI formats of up to 8 sizes per cell for frequency band B. In this case, X1 = 4, X2 = 4, and X = X1 + X2 = 8.

[0124] In another example, if UE 104 can monitor PDCCH candidates for DCI formats of up to 3 sizes with CRC scrambled by C-RNTI per cell for frequency band A and can monitor PDCCH candidates for DCI formats of up to 3 sizes with CRC scrambled by C-RNTI per cell for frequency band B, and if the UE capabilities for frequency band A are shared to frequency band B, then UE 104 can monitor PDCCH candidates for DCI formats of up to 6 sizes with CRC scrambled by C-RNTI per cell for frequency band B. In this case, X1 = 3, X2 = 3, and X = X1 + X2 = 6.

[0125] In another example, if UE 104 can monitor up to 44 PDCCH candidates per cell per time slot for frequency band A and can monitor up to 44 PDCCH candidates per cell per time slot for frequency band B, and if the UE capabilities for frequency band A are shared to frequency band B, then UE 104 can monitor up to 88 PDCCH candidates per cell per time slot for frequency band B. In this case, X1 = 44, X2 = 44, and X = X1 + X2 = 88.

[0126] In another example, if UE 104 can monitor up to 56 non-overlapping CCEs per cell per time slot for frequency band A and can monitor up to 56 non-overlapping CCEs per cell per time slot for frequency band B, and if the UE capabilities for frequency band A are shared to frequency band B, then UE 104 can monitor up to 112 non-overlapping CCEs per cell per time slot for frequency band B. In this case, X1 = 56, X2 = 56, and X = X1 + X2 = 112.

[0127] In another example, if UE 104 can support up to 2 active TCI (Transmission Configuration Indicator) states per cell for frequency band A and can support up to 4 active TCI states per cell for frequency band B, if the UE capabilities for frequency band A are shared to frequency band B, then UE 104 can support up to 6 active TCI states per cell for frequency band B. In this case, X1 = 2, X2 = 4, and X = X1 + X2 = 6.

[0128] In another example, if UE 104 can receive up to 2 layers of PDSCH for a cell for frequency band A and can receive up to 2 layers of PDSCH for a cell for frequency band B, if the UE capabilities for frequency band A are shared to frequency band B, then UE 104 can receive up to 4 layers of PDSCH for a cell for frequency band B. In this case, X1 = 2, X2 = 2, and X = X1 + X2 = 4.

[0129] In another example, if UE 104 can transmit up to 2 layers of PUSCH for a cell for frequency band A and can transmit up to 2 layers of PUSCH for a cell for frequency band B, if the UE capabilities for frequency band A are shared to frequency band B, then UE 104 can transmit up to 4 layers of PUSCH for a cell for frequency band B. In this case, X1 = 2, X2 = 2, and X = X1 + X2 = 4.

[0130] In another example, if UE 104 can measure or monitor a cell for frequency band A using up to 4 SSBs or CSI-RSs (e.g., for L1-RRP measurements) and can measure or monitor a cell for frequency band B using up to 4 SSBs or CSI-RSs, if the UE capabilities for frequency band A are shared to frequency band B, then UE 104 can measure or monitor a cell for frequency band B using up to 8 SSBs or CSI-RSs. In this case, X1 = 4, X2 = 4, and X = X1 + X2 = 8.

[0131] In another example, if UE 104 can be configured with up to 4 configured grant PUSCHs or SPS PDSCHs for a cell for frequency band A and can be configured with up to 2 configured grant PUSCHs or SPS PDSCHs for a cell for frequency band B, if the UE capabilities for frequency band A are shared to frequency band B, then UE 104 can be configured with up to 6 configured grant PUSCHs or SPS PDSCHs for a cell for frequency band B. In this case, X1 = 4, X2 = 2, X = X1 + X2 = 6.

[0132] In another example, if UE 104 can be configured with up to 4 configured grants for PUSCH or SPS PDSCH for a cell on band A, and can be configured with up to 2 configured grants for PUSCH or SPS PDSCH for a cell on band B, if the UE capabilities for band A are shared to band B, then UE 104 can be configured with up to 6 configured grants for PUSCH or SPS PDSCH for a cell on band B. In this case, X1 = 4, X2 = 2, and X = X1 + X2 = 6.

[0133] In another example, if UE 104 supports up to 8 HARQ processes per cell on band A, and the UE supports up to 8 HARQ processes per cell on band B, if the UE capabilities for band A are shared to band B, then UE 104 supports up to 16 HARQ processes per cell on band B. In this case, X1 = 48, X2 = 8, and X = X1 + X2 = 16.

[0134] In various embodiments, UE 104 may indicate a value of one UE capability (e.g., X1) for cell M, and a value of one UE capability (e.g., X2) for cell N (where sharing is not performed). If the UE capabilities for cell M are shared to cell N, then in some examples, the UE capabilities for cell N become X = X1 + X2. The following are specific examples according to this embodiment.

[0135] In one example, if UE 104 can receive 1 PDSCH per time slot for cell M, and can receive 2 PDSCHs per time slot for cell N, if the UE capabilities for cell M are shared to cell N, then in this case, UE 104 can receive 3 TDM PDSCHs per time slot for cell N. In this case, X1 = 1, X2 = 2, and X = X1 + X2 = 3.

[0136] In another example, if UE 104 can receive 1 PDSCH per time slot for cell M, and can receive 1 PDSCH per time slot for cell N, if the UE capabilities for cell M are shared to cell N, then in this case, UE 104 can receive 2 FDM (frequency domain multiplexing) PDSCHs per time slot for cell N. Multiple 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.

[0137] In another example, if UE 104 can transmit 2 PUSCHs per time slot for cell M and can transmit 1 PUSCH per time slot for cell N, then if the UE capabilities for cell M are shared to cell N, in this case, UE 104 can transmit 3 TDM PUSCHs per time slot for cell N. Multiple TDM PUSCHs mean that these PUSCHs do not overlap with each other in the time domain. These PUSCHs may or may not overlap in the frequency domain. In this case, X1 = 2, X2 = 1, and X = X1 + X2 = 3.

[0138] In another example, if UE 104 can transmit 1 PUSCH per time slot for cell M and can transmit 1 PUSCH per time slot for cell N, then if the UE capabilities for cell M are shared to cell N, in this case, UE 104 can transmit 2 FDM PUSCHs per time slot for cell N. Multiple FDM PUSCHs mean that these PUSCHs do not overlap with each other in the frequency domain. These PUSCHs may or may not overlap in the time domain. In this case, X1 = 1, X2 = 1, and X = X1 + X2 = 2.

[0139] In another example, if UE 104 can receive a downlink channel / signal using at most X1 frequency resources (i.e., frequency bandwidth) for cell M and can receive a downlink channel / signal using at most X2 frequency resources for cell N, if the UE capabilities for cell M are shared to cell N, then UE 104 can receive a downlink channel / signal using at most X1 + X2 frequency resources for cell N. The frequency resources can be in units of RB (resource block), RE (resource element), Hz (Hertz), etc. For example, if UE 104 can receive the PDSCH using at most 50 MHz (mega Hertz) of frequency resources for cell M and can receive the PDSCH using at most 50 MHz of frequency resources for cell N, if the UE capabilities for frequency band A are shared to frequency band B, then UE 104 can receive the PDSCH using at most 100 MHz of frequency resources for cell N.

[0140] In another example, if UE 104 can transmit uplink channels / signals using at most X1 frequency resources (i.e., frequency bandwidth) for cell M, and can transmit uplink channels / signals using at most X2 frequency resources for cell N, if the UE capabilities for cell M are shared to cell N, then UE 104 can transmit uplink channels / signals using at most X1 + X2 frequency resources for cell N. The frequency resources can be in units of RB (resource block), RE (resource element), Hz (Hertz), etc. For example, if UE 104 can transmit PUSCH using at most 50 MHz (mega Hertz) of frequency resources for cell M, and can transmit PUSCH using at most 50 MHz of frequency resources for cell N, if the UE capabilities for cell M are shared to cell N, then UE 104 can transmit PUSCH using at most 100 MHz of frequency resources for cell N.

[0141] In another example, if UE 104 can activate 1 DL BWP per cell for cell M, and can activate 1 DL BWP per cell for cell N, if the UE capabilities for cell M are shared to cell N, then in this case, UE 104 can activate 2 DL BWPs per cell for cell N. In this case, X1 = 1, X2 = 1, and X = X1 + X2 = 2.

[0142] In another example, if UE 104 can activate 1 UL BWP per cell for cell M, and can activate 1 UL BWP per cell for cell N, if the UE capabilities for cell M are shared to cell N, then in this case, UE 104 can activate 2 UL BWPs per cell for cell N. In this case, X1 = 1, X2 = 1, and X = X1 + X2 = 2.

[0143] In another example, if UE 104 can be configured with at most 1 DL BWP per cell for cell M, and can be configured with at most 2 DL BWPs per cell for cell N, if the UE capabilities for cell M are shared to cell N, then in this case, UE 104 can be configured with at most 3 DL BWPs per cell for cell N. In this case, X1 = 1, X2 = 2, and X = X1 + X2 = 3.

[0144] In another example, if the UE 104 can be configured with at most 2 UL BWPs per cell for cell M and at most 1 UL BWP per cell for cell N, and if the UE capabilities for cell M are shared to cell N, then in this case, the UE can be configured with at most 3 UL BWPs per cell for cell N. In this case, X1 = 2, X2 = 1, and X = X1 + X2 = 3.

[0145] In another example, if the UE 104 can monitor PDCCH candidates for DCI formats of at most 4 sizes per cell for cell M and can monitor PDCCH candidates for DCI formats of at most 4 sizes per cell for cell N, and if the UE capabilities for cell M are shared to cell N, then the UE 104 can monitor PDCCH candidates for DCI formats of at most 8 sizes per cell for cell N. In this case, X1 = 4, X2 = 4, and X = X1 + X2 = 8.

[0146] In another example, if the UE 104 can monitor PDCCH candidates for DCI formats of at most 3 sizes with CRC scrambled by C-RNTI per cell for cell M and can monitor PDCCH candidates for DCI formats of at most 3 sizes with CRC scrambled by C-RNTI per cell for cell N, and if the UE capabilities for cell M are shared to cell N, then the UE 104 can monitor PDCCH candidates for DCI formats of at most 6 sizes with CRC scrambled by C-RNTI per cell for cell N. In this case, X1 = 3, X2 = 3, and X = X1 + X2 = 6.

[0147] In another example, if the UE 104 can monitor at most 44 PDCCH candidates per cell per time slot for cell M and can monitor at most 44 PDCCH candidates per cell per time slot for cell N, and if the UE capabilities for cell M are shared to cell N, then the UE 104 can monitor at most 88 PDCCH candidates per cell per time slot for cell N. In this case, X1 = 44, X2 = 44, and X = X1 + X2 = 88.

[0148] In another example, if the UE 104 can monitor at most 56 non-overlapping CCEs per cell per time slot for cell M and can monitor at most 56 non-overlapping CCEs per cell per time slot for cell N, and if the UE capabilities for cell M are shared to cell N, then the UE 104 can monitor at most 112 non-overlapping CCEs per cell per time slot for cell N. In this case, X1 = 56, X2 = 56, and X = X1 + X2 = 112.

[0149] In another example, if UE 104 can support up to 2 active TCI (Transmission Configuration Indicator) states per cell for cell M and can support up to 4 active TCI states per cell for cell N, and if the UE capabilities for cell M are shared to cell N, then UE 104 can support up to 6 active TCI states per cell for cell N. In this case, X1 = 2, X2 = 4, and X = X1 + X2 = 6.

[0150] In another example, if UE 104 can receive up to 2 layers of PDSCH for the cell for cell M and can receive up to 2 layers of PDSCH for the cell for cell N, and if the UE capabilities for cell M are shared to cell N, then UE 104 can receive up to 4 layers of PDSCH for the cell for cell N. In this case, X1 = 2, X2 = 2, and X = X1 + X2 = 4.

[0151] In another example, if UE 104 can transmit up to 2 layers of PUSCH for the cell for cell M and can transmit up to 2 layers of PUSCH for the cell for cell N, and if the UE capabilities for cell M are shared to cell N, then UE 104 can transmit up to 4 layers of PUSCH for the cell for cell N. In this case, X1 = 2, X2 = 2, and X = X1 + X2 = 4.

[0152] In another example, if UE 104 can measure or monitor (e.g., for L1-RRP measurement) the cell for cell M using up to 4 SSBs or CSI-RSs and can measure or monitor the cell for cell N using up to 4 SSBs or CSI-RSs, and if the UE capabilities for cell M are shared to cell N, then UE 104 can measure or monitor the cell for cell N using up to 8 SSBs or CSI-RSs. In this case, X1 = 4, X2 = 4, and X = X1 + X2 = 8.

[0153] In another example, if UE 104 can be configured with up to 4 configured grant PUSCHs or SPS PDSCHs for the cell for cell M and can be configured with up to 2 configured grant PUSCHs or SPS PDSCHs for the cell for cell N, and if the UE capabilities for cell M are shared to cell N, then UE 104 can be configured with up to 6 configured grant PUSCHs or SPS PDSCHs for the cell for cell N. In this case, X1 = 4, X2 = 2, and X = X1 + X2 = 6.

[0154] In another example, if UE 104 can be configured with up to 4 configured grants for PUSCH or SPS PDSCH per cell for cell M, and can be configured with up to 2 configured grants for PUSCH or SPS PDSCH per cell for cell N, if the UE capabilities for cell M are shared to cell N, then UE 104 can be configured with up to 6 configured grants for PUSCH or SPS PDSCH per cell for cell N. In this case, X1 = 4, X2 = 2, and X = X1 + X2 = 6.

[0155] In another example, if UE 104 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, if the UE capabilities for cell M are shared to cell N, then UE 104 supports up to 16 HARQ processes per cell for cell N. In this case, X1 = 48, X2 = 8, and X = X1 + X2 = 16.

[0156] In various embodiments, UE 104 may indicate a value of one UE capability for frequency band A (e.g., X1) and a value of one UE capability for (non-shared) frequency band B (e.g., X2). If the UE capabilities for frequency band A are shared to frequency band B, then in some examples, the UE capabilities for frequency band B become X, where X2 < X ≤ X1 + X2. Similarly, UE 104 may indicate a value of one UE capability for cell M (e.g., X1), and a value of one UE capability for (non-shared) cell N (e.g., X2). If the UE capabilities for cell M are shared to cell N, then in this example, the UE capabilities for cell N become X, where X2 < X ≤ X1 + X2. In either case, X can be configured by higher layer configuration. In other words, the magnitude of at least one capability of at least one first frequency band or at least one first cell can be represented as X1, and the magnitude of at least one capability of at least one second frequency band or at least one second cell that is not shared can be represented as X2. The method may include: sharing at least one capability from at least one first frequency band or at least one first cell to at least one second frequency band or at least one second cell, such that the shared capability of the at least one second frequency band or the at least one second cell is X, where X2 < X ≤ X1 + X2, and where X is configured by higher layer configuration.

[0157] For example, if UE 104 supports 2 TCI states for frequency band A and 2 TCI states for frequency band B, then if the UE capabilities for frequency band A are shared to frequency band B, the base station 102 may configure UE 104 such that UE 104 supports at most 3 TCI states for frequency band B in the case of UE capability sharing. In this case, for frequency band B, the UE capability for the number of TCI states becomes 3.

[0158] In another embodiment, if UE 104 indicates a value X1 of a UE capability for a frequency band pair (e.g., frequency band A and frequency band B), then if the UE capability is shared from frequency band A to frequency band B, the UE capability becomes 2*X1 (i.e., twice X1). In other words, the first frequency band and the second frequency band may be a frequency band pair, and the magnitude of at least one capability of at least one first frequency band and the magnitude of the non-shared capability of at least one second frequency band are represented as X1. The method may further include UE 104 sharing at least one capability from at least one first frequency band to at least one second frequency band such that the shared capability of at least one second frequency band is 2*X1.

[0159] For example, if UE 104 indicates support for 2 active BWPs for a frequency band pair (e.g., frequency band A, frequency band B), and all the cells for frequency band A are deactivated, then if the UE capability is shared from frequency band A to frequency band B, in this case, UE104 supports at most 2 active BWPs for frequency band B.

[0160] In another embodiment, if UE 104 indicates a value X1 of the UE capability for each UE, then if the UE capability is shared from frequency band A to frequency band B, the UE capability becomes 2*X1 (i.e., twice X1). In other words, the magnitude of at least one capability of at least one first frequency band and the magnitude of the non-shared capability of at least one second frequency band are set for the entire UE 104 and represented as X1. The method may further include UE 104 sharing at least one capability from at least one first frequency band to at least one second frequency band such that the shared capability of at least one second frequency band is 2*X1.

[0161] Although only sharing of UE capabilities from one frequency band to another frequency band has been discussed above, a similar mechanism can be applied to the case of sharing UE capabilities from multiple frequency bands to one frequency band.

[0162] In one embodiment, if UE 104 is configured with cells in K frequency bands (denoted as B1, B2,..., B K )(e.g., including at least one first frequency band and at least one second frequency band), and UE 104 indicates a value X1, X2,..., X K, where K is an integer and K≥3. If all the UE capabilities for all but one of the K frequency bands (e.g., B1) are shared to that frequency band (e.g., B1), then in this case, the UE capability for that frequency band becomes where k is an integer and 1≤k≤K. In other words, the method includes UE 104 sharing at least one capability for all but the second frequency band among the K frequency bands to the second frequency band, such that the shared capability (X) for the second frequency band is

[0163] Similarly, if UE 104 is configured with K cells (denoted as C1, C2,..., C K )(e.g., including at least one first cell and at least one second cell), and UE 104 indicates a value of UE capability X1, X2,..., X for each cell K , where K is an integer and K≥3. If all the UE capabilities for all but one of the cells (e.g., C1) are shared to that cell (e.g., C1), then in this case, the UE capability for that cell becomes where k is an integer and 1≤k≤K. In other words, the method includes UE 104 sharing at least one capability for all but the second cell among the K cells to the second cell, such that the shared capability (X) for the second cell is

[0164] In one embodiment, if UE 104 is configured with cells in K frequency bands (denoted as B1, B2,..., B K )(e.g., including at least one first frequency band and at least one second frequency band), and UE 104 indicates a value of UE capability X1, X2,..., X for each frequency band K , where K is an integer and K≥3. If all the UE capabilities for all but one frequency band B k are shared to that frequency band B k , then in this case, the UE capability for that frequency band becomes X, where k is an integer and 1≤k≤K. X can be configured by a higher layer configuration, and X i is the indication value of the UE capability for frequency band B k . In other words, the method may include UE 104 sharing at least one capability for all but the second frequency band among the K frequency bands to the second frequency band, such that the shared capability (X) for the second frequency band is, and where k is an integer and 1≤k≤K, and X iis an indication value for a second frequency band, and wherein X is configured by higher layers.

[0165] Similarly, if UE 104 is configured with K cells (denoted as C1, C2, ..., C K )(e.g., including at least one first cell and at least one second cell), and UE 104 indicates a value X1, X2, ..., X of UE capabilities for each cell K , where K is an integer and K≥3, if the UE capabilities for all cells except one cell C k are all shared to this cell C k , then in this case, the UE capability for this cell becomes X, where k is an integer and 1≤k≤K. X can be configured by higher layers, and X i is an indication value for the UE capability of cell C k . In other words, the method may include UE 104 sharing at least one capability of all cells except the second cell among the K cells to the second cell, such that the shared capability (X) for the second cell is, and wherein, k is an integer and 1≤k≤K, and X i is an indication value for the second cell, and wherein, X is configured by higher layers.

[0166] In another embodiment, if UE 104 indicates a value X1 of UE capability for a frequency band combination including K frequency bands (denoted as B1, B2, ..., B K )(e.g., including at least one first frequency band and at least one second frequency band), if the UE capabilities for all frequency bands except one frequency band B k are all shared to this frequency band B k , then in this case, the UE capability for this frequency band B k becomes X = K·X1. K is an integer and K≥3. In other words, the method may include UE 104 sharing at least one capability of all frequency bands except the second frequency band among the K frequency bands to the second frequency band, such that the shared capability (X) for the second frequency band is X = K·X1.

[0167] In another embodiment, if UE 104 indicates a per-UE UE capability value X1, and if the UE capabilities for (K-1) frequency bands are shared to one frequency band, then in this case, the UE capability for this frequency band becomes X = K·X1, where K is an integer and K≥3. In other words, the method may include UE 104 sharing at least one capability for all frequency bands among the K frequency bands except the second frequency band to the second frequency band, such that the shared capability (X) for the second frequency band is X = K·X1.

[0168] In another embodiment, if the UE capabilities for frequency band A are shared to frequency band B, then UE 104 may support obtaining timing information for frequency band B based on the SSB (synchronization signal block) or other TRS (tracking reference signal, or CSI-RS for tracking) transmitted on frequency band A. Similarly, if the UE capabilities for cell M are shared to cell N, then UE 104 may support obtaining timing information for cell N based on the SSB or other TRS transmitted on cell M. In other words, the method may include UE 104 obtaining timing information for at least one second frequency band or at least one second cell based on the synchronization signal block (SSB) or other tracking reference signal (TRS) or channel state information reference signal (CSI-RS) transmitted on at least one second frequency band or at least one second cell.

[0169] Generally, UE 104 may obtain timing information for the cell from the SSB or TRS transmitted in the cell. However, referring to Figure 6 the example, if the UE capabilities for frequency band #1 are shared to frequency band #2, then UE 104 may obtain timing information for cell #2 in frequency band #2 from cell #1 in frequency band #1.

[0170] In various embodiments, UE 104 may indicate to base station 102 support for sharing UE capabilities to a frequency band pair of the base station (e.g., a frequency band pair including at least one first frequency band and at least one second frequency band). The UE capabilities for one frequency band in the frequency band pair may be shared to the other frequency band in the frequency band pair. For example, if UE 104 indicates a frequency band pair (e.g., frequency band A, frequency band B) to base station 102, then the UE capabilities for frequency band A may be shared to frequency band B, and the UE capabilities for frequency band B may be shared to frequency band A.

[0171] In various embodiments, the UE 104 may indicate to the base station 102 a frequency band pair that supports UE capability sharing (e.g., a frequency band pair including at least one first frequency band and at least one second frequency band), and indicate to the base station the sharing direction (e.g., from at least one first frequency band to at least one second frequency band). For example, if the UE 104 indicates to the base station 102 the frequency band pair (Frequency Band A, Frequency Band B) and indicates that the sharing direction is from Frequency Band A to Frequency Band B, then the UE capabilities for Frequency Band A can be shared to Frequency Band B.

[0172] In various embodiments, the UE 104 may indicate to the base station 102 the frequency band that supports UE capability sharing, and the UE 104 may support sharing of UE capabilities from one cell in this frequency band to another cell in this frequency band. In other words, at least one first cell and at least one second cell may be within the same frequency band, and the method may include the UE 104 indicating to the base station 102, and the base station 102 receiving: the frequency band including at least one first cell and at least one second cell that supports sharing of at least one capability from at least one first cell to at least one second cell. For example, if the UE 104 indicates to the base station 102 that Frequency Band #1 supports UE capability sharing, then the base station 1012 may configure 2 cells (Cell #1 and Cell #2) in Frequency Band #1, and the UE 104 supports sharing of UE capabilities from Cell #1 to Cell #2 and from Cell #2 to Cell #1.

[0173] In various embodiments, the UE 104 may indicate to the base station 102 a frequency band combination that supports UE capability sharing (e.g., including at least one first frequency band and at least one second frequency band), where the UE 104 may support sharing of UE capabilities from one or more frequency bands in this frequency band combination to another frequency band in this frequency band combination.

[0174] In various embodiments, the UE 104 may indicate to the base station 102 a list of UE capabilities that support sharing from one frequency band to another frequency band. For example, the UE 104 may indicate to the base station 102 that: the UE capability (indicating the number of PUSCHs transmitted in one time slot) supports sharing from one frequency band to another frequency band.

[0175] Similarly, the UE 104 may indicate to the base station 102 a list of UE capabilities that support sharing from one cell to another cell. For example, the UE 104 may indicate to the base station 102 that: the UE capability (indicating the number of PUSCHs transmitted in one time slot) supports sharing from one cell to another cell.

[0176] In various embodiments, the base station 102 may trigger UE capability sharing via Radio Resource Control (RRC) signaling, Media Access Control Control Element (MAC-CE), or Downlink Control Information (DCI). In other words, via RRC signaling, MAC-CE, or DCI, the base station 102 may convey to the UE 104, and the UE 104 may receive: the communication triggering the sharing.

[0177] In one example, a MAC-CE or DCI may indicate deactivation of a secondary cell (SCell) and trigger UE capability sharing (e.g., from the SCell). For example, a MAC-CE indicates deactivation of the SCell for cell A and indicates UE capability sharing from cell A to another cell.

[0178] In another example, a DCI may indicate that the SCell goes to sleep and trigger UE capability sharing (e.g., from the SCell). For example, a DCI indicates that the SCell for cell A goes to sleep (i.e., the SCell enters a sleep state) and indicates UE capability sharing from cell A to another cell.

[0179] The following are detailed examples of US capability sharing between different frequency bands.

[0180] In one example, if the UE 104 can receive 1 PDSCH per time slot for frequency band A and can receive 2 PDSCHs per time slot for frequency band B, a MAC-CE or DCI deactivates all cells in frequency band A (or a MAC-CE or DCI indicates that all cells in frequency band A enter a sleep state) and triggers sharing of the UE capability for frequency band A to frequency band B. In this case, the UE 104 can receive 3 Time Division Multiplexing (TDM) PDSCHs per time slot for frequency band B.

[0181] In one example, if the UE 104 can receive 1 PDSCH per time slot for frequency band A and can receive 1 PDSCH per time slot for frequency band B, a MAC-CE or DCI deactivates all cells in frequency band A (or a MAC-CE or DCI indicates that all cells in frequency band A enter a sleep state) and triggers sharing of the UE capability for frequency band A to frequency band B. In this case, the UE 104 can receive 2 Frequency Division Multiplexing (FDM) PDSCHs per time slot for frequency band B.

[0182] In one example, if UE 104 can transmit 2 PUSCHs per time slot for frequency band A and can transmit 1 PUSCH per time slot for frequency band B, a MAC-CE or DCI deactivates all cells in frequency band A (or a MAC-CE or DCI indicates that all cells in frequency band A enter the sleep state), and triggers sharing the UE capability for frequency band A to frequency band B, then in this case, UE 104 can transmit 3 TDM PUSCHs per time slot for frequency band B.

[0183] In one example, if UE 104 can transmit 1 PUSCH per time slot for frequency band A and can transmit 1 PUSCH per time slot for frequency band B, a MAC-CE or DCI deactivates all cells in frequency band A (or a MAC-CE or DCI indicates that all cells in frequency band A enter the sleep state), and triggers sharing the UE capability for frequency band A to frequency band B, then in this case, UE 104 can transmit 2 FDM PDSCHs per time slot for frequency band B.

[0184] In another example, if UE 104 can receive downlink channels / signals using at most X1 frequency resources (i.e., frequency bandwidth) for frequency band A and can receive downlink channels / signals using at most X2 frequency resources for frequency band B, a MAC-CE or DCI deactivates all cells in frequency band A (or a MAC-CE or DCI indicates that all cells in frequency band A enter the sleep state), and triggers sharing the UE capability for frequency band A to frequency band B, then UE 104 can receive downlink channels / signals using at most X1 + X2 frequency resources for frequency band B. The frequency resources can be in units such as RB (resource block), RE (resource element), Hz (Hertz), etc.

[0185] In another example, if UE 104 can receive uplink channels / signals using at most X1 frequency resources (i.e., frequency bandwidth) for frequency band A and can receive uplink channels / signals using at most X2 frequency resources for frequency band B, a MAC-CE or DCI deactivates all cells in frequency band A (or a MAC-CE or DCI indicates that all cells in frequency band A enter the sleep state), and triggers sharing the UE capability for frequency band A to frequency band B, then UE 104 can receive uplink channels / signals using at most X1 + X2 frequency resources for frequency band B. The frequency resources can be in units such as RB (resource block), RE (resource element), Hz (Hertz), etc.

[0186] In one example, if UE 104 can activate 1 DL BWP per cell for band A and can activate 1 DL BWP per cell for band B, a MAC-CE or DCI deactivates all cells in band A (or a MAC-CE or DCI indicates that all cells in band A enter the dormant state) and triggers sharing of the UE capabilities for band A to band B, then in this case, UE 104 can activate 2 DL BWPs per cell for band B.

[0187] In one example, if UE 104 can activate 1 UL BWP per cell for band A and can activate 1 UL BWP per cell for band B, a MAC-CE or DCI deactivates all cells in band A (or a MAC-CE or DCI indicates that all cells in band A enter the dormant state) and triggers sharing of the UE capabilities for band A to band B, then in this case, UE 104 can activate 2 UL BWPs per cell for band B.

[0188] In one example, if UE 104 can be configured with at most 1 DL BWP per cell for band A and can be configured with at most 2 DL BWPs per cell for band B, a MAC-CE or DCI deactivates all cells in band A (or a MAC-CE or DCI indicates that all cells in band A enter the dormant state) and triggers sharing of the UE capabilities for band A to band B, then in this case, UE 104 can be configured with at most 3 DL BWPs per cell for band B.

[0189] In one example, if UE 104 can be configured with at most 2 UL BWPs per cell for band A and can be configured with at most 1 UL BWP per cell for band B, a MAC-CE or DCI deactivates all cells in band A (or a MAC-CE or DCI indicates that all cells in band A enter the dormant state) and triggers sharing of the UE capabilities for band A to band B, then in this case, UE 104 can be configured with at most 3 UL BWPs per cell for band B.

[0190] In one example, if UE 104 can monitor PDCCH candidates of DCI formats of up to size 4 per cell for frequency band A, and can monitor PDCCH candidates of DCI formats of up to size 4 per cell for frequency band B, a MAC-CE or DCI deactivates all cells in frequency band A (or a MAC-CE or DCI indicates that all cells in frequency band A enter the sleep state), and triggers sharing of the UE capabilities for frequency band A to frequency band B, then UE 104 can monitor PDCCH candidates of DCI formats of up to size 8 per cell for frequency band B.

[0191] In one example, if UE 104 can monitor PDCCH candidates of DCI formats of up to size 3 with CRC scrambled by C-RNTI per cell for frequency band A, and can monitor PDCCH candidates of DCI formats of up to size 3 with CRC scrambled by C-RNTI per cell for frequency band B, a MAC-CE or DCI deactivates all cells in frequency band A (or a MAC-CE or DCI indicates that all cells in frequency band A enter the sleep state), and triggers sharing of the UE capabilities for frequency band A to frequency band B, then UE 104 can monitor PDCCH candidates of DCI formats of up to size 6 with CRC scrambled by C-RNTI per cell for frequency band B.

[0192] In one example, if UE 104 can monitor up to 44 PDCCH candidates per cell per time slot for frequency band A, and can monitor up to 44 PDCCH candidates per cell per time slot for frequency band B, a MAC-CE or DCI deactivates all cells in frequency band A (or a MAC-CE or DCI indicates that all cells in frequency band A enter the sleep state), and triggers sharing of the UE capabilities for frequency band A to frequency band B, then UE 104 can monitor up to 88 PDCCH candidates per cell per time slot for frequency band B.

[0193] In one example, if UE 104 can monitor up to 56 non-overlapping CCEs per cell per time slot per time slot for frequency band A, and can monitor up to 56 non-overlapping CCEs per cell per time slot per time slot for frequency band B, a MAC-CE or DCI deactivates all cells in frequency band A (or a MAC-CE or DCI indicates that all cells in frequency band A enter the sleep state), and triggers sharing of the UE capabilities for frequency band A to frequency band B, then UE 104 can monitor up to 112 non-overlapping CCEs per cell per time slot per time slot for frequency band B.

[0194] In one example, if UE 104 can support up to 2 active TCI (Transmission Configuration Indicator) states per cell for band A and can support up to 4 active TCI states per cell for band B, a MAC-CE or DCI deactivates all cells in band A (or a MAC-CE or DCI indicates that all cells in band A enter the sleep state) and triggers sharing the UE capabilities for band A to band B, then UE 104 can support up to 6 active TCI states per cell for band B.

[0195] In one example, if UE 104 can receive up to 2 layers of PDSCH for a cell for band A and can receive up to 2 layers of PDSCH for a cell for band B, a MAC-CE or DCI deactivates all cells in band A (or a MAC-CE or DCI indicates that all cells in band A enter the sleep state) and triggers sharing the UE capabilities for band A to band B, then UE 104 can receive up to 4 layers of PDSCH for a cell for band B.

[0196] In one example, if UE 104 can transmit up to 2 layers of PUSCH for a cell for band A and can transmit up to 2 layers of PUSCH for a cell for band B, a MAC-CE or DCI deactivates all cells in band A (or a MAC-CE or DCI indicates that all cells in band A enter the sleep state) and triggers sharing the UE capabilities for band A to band B, then UE 104 can transmit up to 4 layers of PUSCH for a cell for band B.

[0197] In one example, if UE 104 can measure or monitor a cell using up to 4 SSBs or CSI-RSs for band A (e.g., for L1-RRP measurement) and can measure or monitor a cell using up to 4 SSBs or CSI-RSs for band B, a MAC-CE or DCI deactivates all cells in band A (or a MAC-CE or DCI indicates that all cells in band A enter the sleep state) and triggers sharing the UE capabilities for band A to band B, then UE 104 can measure or monitor a cell using up to 8 SSBs or CSI-RSs for band B.

[0198] In one example, if UE 104 can be configured with up to 4 configured grants for PUSCH or SPS PDSCH for a cell on band A, and can be configured with up to 2 configured grants for PUSCH or SPS PDSCH for a cell on band B, a MAC-CE or DCI deactivates all cells on band A (or a MAC-CE or DCI indicates that all cells on band A enter the dormant state), and triggers sharing of the UE capabilities for band A to band B, then UE 104 can be configured with up to 6 configured grants for PUSCH or SPS PDSCH for a cell on band B.

[0199] In one example, if UE 104 can be configured with up to 4 configured grants for PUSCH or SPS PDSCH for a cell on band A, and can be configured with up to 2 configured grants for PUSCH or SPS PDSCH for a cell on band B, a MAC-CE or DCI deactivates all cells on band A (or a MAC-CE or DCI indicates that all cells on band A enter the dormant state), and triggers sharing of the UE capabilities for band A to band B, then UE 104 can be configured with up to 6 configured grants for PUSCH or SPS PDSCH for a cell on band B.

[0200] In one example, if UE 104 supports up to 8 HARQ processes per cell on band A, and the UE supports up to 8 HARQ processes per cell on band B, a MAC-CE or DCI deactivates all cells on band A (or a MAC-CE or DCI indicates that all cells on band A enter the dormant state), and triggers sharing of the UE capabilities for band A to band B, then UE 104 supports up to 16 HARQ processes per cell on band B.

[0201] The following are detailed examples of US capability sharing between cells.

[0202] In one example, if UE 104 can receive 1 PDSCH per time slot for cell M, and can receive 2 PDSCHs per time slot for cell N, a MAC-CE or DCI deactivates cell M (or a MAC-CE or DCI indicates that cell M enters the dormant state), and triggers sharing of the UE capabilities for cell M to cell N, then in this case, UE 104 can receive 3 TDM PDSCHs per time slot for cell N.

[0203] In one example, if UE 104 can receive 1 PDSCH per time slot for cell M and can receive 1 PDSCH per time slot for cell N, a MAC-CE or DCI deactivates cell M (or a MAC-CE or DCI indicates that cell M enters the sleep state), and triggers sharing the UE capability for cell M to cell N, then in this case, UE 104 can receive 2 FDM PDSCHs per time slot for cell N.

[0204] In one example, if UE 104 can transmit 2 PUSCHs per time slot for cell M and can transmit 1 PUSCH per time slot for cell N, a MAC-CE or DCI deactivates cell M (or a MAC-CE or DCI indicates that cell M enters the sleep state), and triggers sharing the UE capability for cell M to cell N, then in this case, UE 104 can transmit 3 TDM PUSCHs per time slot for cell N.

[0205] In one example, if UE 104 can transmit 1 PUSCH per time slot for cell M and can transmit 1 PUSCH per time slot for cell N, a MAC-CE or DCI deactivates cell M (or a MAC-CE or DCI indicates that cell M enters the sleep state), and triggers sharing the UE capability for cell M to cell N, then in this case, UE 104 can transmit 2 FDM PUSCHs per time slot for cell N.

[0206] In another example, if UE 104 can receive downlink channels / signals using at most X1 frequency resources (i.e., frequency bandwidth) for cell M and can receive downlink channels / signals using at most X2 frequency resources for cell N, a MAC-CE or DCI deactivates cell M (or a MAC-CE or DCI indicates that cell M enters the sleep state), and triggers sharing the UE capability for cell M to cell N, then UE 104 can receive downlink channels / signals using at most X1 + X2 frequency resources for cell N. The frequency resources can be in units such as RB (resource block), RE (resource element), Hz (Hertz), etc.

[0207] In another example, if UE 104 can transmit uplink channels / signals using at most X1 frequency resources (i.e., frequency bandwidths) for cell M, and can transmit uplink channels / signals using at most X2 frequency resources for cell N, a MAC-CE or DCI deactivates cell M (or a MAC-CE or DCI indicates that cell M enters the sleep state), and triggers sharing the UE capabilities for cell M to cell N, then UE 104 can transmit uplink channels / signals using at most X1 + X2 frequency resources for cell N. The frequency resources can be in units such as RB (resource block), RE (resource element), Hz (Hertz), etc.

[0208] In one example, if UE 104 can activate 1 DL BWP per cell for cell M, and can activate 1 DL BWP per cell for cell N, a MAC-CE or DCI deactivates cell M (or a MAC-CE or DCI indicates that cell M enters the sleep state), and triggers sharing the UE capabilities for cell M to cell N, then in this case, UE 104 can activate 2 DL BWPs per cell for cell N.

[0209] In one example, if UE 104 can activate 1 UL BWP per cell for cell M, and can activate 1 UL BWP per cell for cell N, a MAC-CE or DCI deactivates cell M (or a MAC-CE or DCI indicates that cell M enters the sleep state), and triggers sharing the UE capabilities for cell M to cell N, then in this case, UE 104 can activate 2 UL BWPs per cell for cell N.

[0210] In one example, if UE 104 can be configured with at most 1 DL BWP per cell for cell M, and can be configured with at most 2 DL BWPs per cell for cell N, a MAC-CE or DCI deactivates cell M (or a MAC-CE or DCI indicates that cell M enters the sleep state), and triggers sharing the UE capabilities for cell M to cell N, then in this case, UE 104 can be configured with at most 3 DL BWPs per cell for cell N.

[0211] In one example, if UE 104 can be configured with at most 2 UL BWPs per cell for cell M, and can be configured with at most 1 UL BWP per cell for cell N, a MAC-CE or DCI deactivates cell M (or a MAC-CE or DCI indicates that cell M enters the sleep state), and triggers sharing the UE capabilities for cell M to cell N, then in this case, UE 104 can be configured with at most 3 UL BWPs per cell for cell N.

[0212] In one example, if UE 104 can monitor PDCCH candidates for DCI formats of up to 4 sizes per cell for cell M and can monitor PDCCH candidates for DCI formats of up to 4 sizes per cell for cell N, a MAC-CE or DCI deactivates cell M (or a MAC-CE or DCI indicates that cell M enters a dormant state), and triggers sharing of the UE capabilities for cell M to cell N, then UE 104 can monitor PDCCH candidates for DCI formats of up to 8 sizes per cell for cell N.

[0213] In one example, if UE 104 can monitor PDCCH candidates for DCI formats of up to 3 sizes with CRC scrambled by C-RNTI per cell for cell M and can monitor PDCCH candidates for DCI formats of up to 3 sizes with CRC scrambled by C-RNTI per cell for cell N, a MAC-CE or DCI deactivates cell M (or a MAC-CE or DCI indicates that cell M enters a dormant state), and triggers sharing of the UE capabilities for cell M to cell N, then UE 104 can monitor PDCCH candidates for DCI formats of up to 6 sizes with CRC scrambled by C-RNTI per cell for cell N.

[0214] In one example, if UE 104 can monitor up to 44 PDCCH candidates per cell per time slot for cell M and can monitor up to 44 PDCCH candidates per cell per time slot for cell N, a MAC-CE or DCI deactivates cell M (or a MAC-CE or DCI indicates that cell M enters a dormant state), and triggers sharing of the UE capabilities for cell M to cell N, then UE 104 can monitor up to 88 PDCCH candidates per cell per time slot for cell N.

[0215] In one example, if UE 104 can monitor up to 56 non-overlapping CCEs per cell per time slot per time slot for cell M and can monitor up to 56 non-overlapping CCEs per cell per time slot per time slot for cell N, a MAC-CE or DCI deactivates cell M (or a MAC-CE or DCI indicates that cell M enters a dormant state), and triggers sharing of the UE capabilities for cell M to cell N, then UE 104 can monitor up to 112 non-overlapping CCEs per cell per time slot per time slot for cell N.

[0216] In one example, if UE 104 can support up to 2 active TCI (Transmission Configuration Indicator) states per cell for cell M and can support up to 4 active TCI states per cell for cell N, a MAC-CE or DCI deactivates cell M (or a MAC-CE or DCI indicates that cell M enters the dormant state), and triggers sharing of the UE capabilities for cell M to cell N, then UE 104 can support up to 6 active TCI states per cell for cell N.

[0217] In one example, if UE 104 can receive up to 2 layers of PDSCH for the cell for cell M and can receive up to 2 layers of PDSCH for the cell for cell N, a MAC-CE or DCI deactivates cell M (or a MAC-CE or DCI indicates that cell M enters the dormant state), and triggers sharing of the UE capabilities for cell M to cell N, then UE 104 can receive up to 4 layers of PDSCH for the cell for cell N.

[0218] In one example, if UE 104 can transmit up to 2 layers of PUSCH for the cell for cell M and can transmit up to 2 layers of PUSCH for the cell for cell N, a MAC-CE or DCI deactivates cell M (or a MAC-CE or DCI indicates that cell M enters the dormant state), and triggers sharing of the UE capabilities for cell M to cell N, then UE 104 can transmit up to 4 layers of PUSCH for the cell for cell N.

[0219] In one example, if UE 104 can measure or monitor the cell using up to 4 SSBs or CSI-RSs for cell M (e.g., for L1-RRP measurement) and can measure or monitor the cell using up to 4 SSBs or CSI-RSs for cell N, a MAC-CE or DCI deactivates cell M (or a MAC-CE or DCI indicates that cell M enters the dormant state), and triggers sharing of the UE capabilities for cell M to cell N, then UE 104 can measure or monitor the cell using up to 8 SSBs or CSI-RSs for cell N.

[0220] In one example, if UE 104 can be configured with up to 4 configured grants for PUSCH or SPS PDSCH for cell M, and can be configured with up to 2 configured grants for PUSCH or SPS PDSCH for cell N, a MAC-CE or DCI deactivates cell M (or a MAC-CE or DCI indicates that cell M enters the dormant state), and triggers sharing of the UE capabilities for cell M to cell N, then UE 104 can be configured with up to 6 configured grants for PUSCH or SPS PDSCH for cell N.

[0221] In one example, if UE 104 can be configured with up to 4 configured grants for PUSCH or SPS PDSCH for cell M, and can be configured with up to 2 configured grants for PUSCH or SPS PDSCH for cell N, a MAC-CE or DCI deactivates cell M (or a MAC-CE or DCI indicates that cell M enters the dormant state), and triggers sharing of the UE capabilities for cell M to cell N, then the UE can be configured with up to 6 configured grants for PUSCH or SPS PDSCH for cell N.

[0222] In one example, if UE 104 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, a MAC-CE or DCI deactivates cell M (or a MAC-CE or DCI indicates that cell M enters the dormant state), and triggers sharing of the UE capabilities for cell M to cell N, then UE 104 supports up to 16 HARQ processes per cell for cell N.

[0223] The above description and the drawings provide specific example embodiments and implementations. However, the described subject matter can be implemented in various different forms, and thus, the subject matter covered or claimed is intended to be construed as not limited to any example embodiment set forth herein. A reasonably broad scope is intended for the subject matter claimed or covered. In particular, for example, the subject matter can be implemented as a method, apparatus, component, system, or non-transitory computer-readable medium for storing computer code. Accordingly, the embodiments can take, for example, the form of hardware, software, firmware, storage media, or any combination thereof. For example, the above method embodiments can be implemented by a component, device, or system including a memory and a processor by executing computer code stored in the memory.

[0224] Throughout the specification and claims, terms may have nuanced meanings that are suggested or implied in the context beyond their explicitly stated meanings. Similarly, as used herein, the phrase "in one embodiment / implementation" does not necessarily refer to the same embodiment, and the phrase "in another embodiment / implementation" does not necessarily refer to a different embodiment. For example, the claimed subject matter is intended to include combinations of example embodiments, in whole or in part.

[0225] Generally speaking, terms can be understood, at least in part, based on their use in context. For example, terms such as "and," "or," or "and / or" as used herein can have various meanings, which can depend, at least in part, on the context in which these terms are used. Typically, "or" when used to associate a list such as A, B, or C is intended to mean A, B, and C (used in an inclusive sense here) as well as A, B, or C (used in an exclusive sense here). Additionally, at least in part depending on the context, the term "one or more" as used herein can be used to describe any feature, structure, or property in a singular sense, or can be used to describe a combination of features, structures, or properties in a plural sense. Similarly, at least in part depending on the context, terms such as "a," "an," or "the" can be understood to convey singular usage or convey plural usage. Further, the term "based on" can be understood to not necessarily convey an exclusive set of factors, but instead, also at least in part depending on the context, can allow for the presence of additional factors that may not be explicitly described.

[0226] References throughout the specification to features, advantages, or similar language do not mean that all features and advantages achievable with the solution should be present in any single embodiment or included in any single embodiment. Rather, the language referring to the features and advantages is understood to mean that a particular feature, advantage, or characteristic described in connection with an embodiment is included in at least one embodiment of the solution. Thus, throughout the specification, the discussion of features, advantages, and similar language may, but does not necessarily, refer to the same embodiment.

[0227] Moreover, the described features, advantages, or characteristics of the solution can be combined in any suitable manner in one or more embodiments. A person of ordinary skill in the relevant art will recognize, based on the description herein, that the solution can be practiced without one or more of the specific features or advantages of a particular embodiment. In other instances, additional features and advantages may be recognized in certain embodiments that may not be present in all embodiments of the solution.

Claims

1. A method for processing transmissions performed by a wireless terminal device, the method comprising: Sharing at least one capability from at least one first frequency band or at least one first cell to at least one second frequency band or at least one second cell; And Indicating the capability sharing information to a radio access network node.

2. The method according to claim 1, Among them, Indicating the capability sharing information to a radio access network node includes: indicating to the radio access network node support for a frequency band combination including the at least one first frequency band and the at least one second frequency band, The method comprising: Receiving a configuration of the at least one second frequency band from the radio access network node and not receiving a configuration of the at least one first frequency band; and Sharing the at least one capability from the at least one first frequency band to the at least one second frequency band.

3. The method according to claim 1, comprising: Receiving a configuration of one or more cells in the at least one first frequency band and a configuration of one or more cells in the at least one second frequency band from the radio access network node; Determining that all of the one or more cells in the at least one first frequency band are deactivated; And Sharing the at least one capability from the at least one first frequency band to the at least one second frequency band.

4. The method according to claim 1, comprising: Receiving a configuration of the at least one first cell and a configuration of the at least one second cell from the radio access network node; Determining that the at least one first cell is deactivated; And Sharing the at least one capability from the at least one first cell to the at least one second cell, Wherein the at least one first cell and the at least one second cell are in the same frequency band or in two different frequency bands.

5. The method according to claim 1, comprising: Receiving a configuration of one or more cells in the at least one first frequency band and a configuration of one or more cells in the at least one second frequency band from the radio access network node; Determining that all of the one or more cells in the at least one first frequency band are in a dormant state; And Sharing the at least one capability from the at least one first frequency band to the at least one second frequency band.

6. The method according to claim 1, comprising: Receiving a configuration of the at least one first cell and a configuration of the at least one second cell from the radio access network node; Determining that the at least one first cell is in a dormant state; And Sharing the at least one capability from the at least one first cell to the at least one second cell, Wherein the at least one first cell and the at least one second cell are in the same frequency band or in two different frequency bands.

7. The method according to claim 1, comprising: Receiving a configuration of one or more cells in the at least one first frequency band and a configuration of one or more cells in the at least one second frequency band from the radio access network node; Determining that all of the one or more cells in the at least one first frequency band are in a discontinuous reception DRX off state; And Share the at least one capability from the at least one first frequency band to the at least one second frequency band.

8. The method according to claim 1, comprising: Receiving the configuration of the at least one first cell and the configuration of the at least one second cell from the radio access network node; Determining that the at least one first cell is in a discontinuous reception (DRX) off state; And Sharing the at least one capability from the at least one first cell to the at least one second cell, Wherein, the at least one first cell and the at least one second cell are in the same frequency band or in two different frequency bands.

9. The method according to claim 1, comprising: Receiving the configuration of one or more cells in the at least one first frequency band and the configuration of one or more cells in the at least one second frequency band from the radio access network node; Determining that all of the one or more cells in the at least one first frequency band are not scheduled within a time unit; and Sharing the at least one capability from the at least one first frequency band to the at least one second frequency band during the time unit.

10. The method according to claim 1, comprising: Receiving the configuration of one or more cells in the at least one first frequency band and the configuration of one or more cells in the at least one second frequency band from the radio access network node; Determining that all of the one or more cells in the at least one first frequency band are configured as downlink within a time unit; And Sharing at least one uplink-related capability from the at least one first frequency band to the at least one second frequency band during the time unit.

11. The method according to claim 1, comprising: Receiving the configuration of one or more cells in the at least one first frequency band and the configuration of one or more cells in the at least one second frequency band from the radio access network node; Determining that all of the one or more cells in the at least one first frequency band are configured as uplink within a time unit; And Sharing at least one downlink-related capability from the at least one first frequency band to the at least one second frequency band during the time unit.

12. The method according to claim 1, comprising: Receiving the configuration of the at least one first cell and the configuration of the at least one second cell from the radio access network node; Determining that the at least one first cell is not scheduled within a time unit; And Sharing the at least one capability from the at least one first cell to the at least one second cell during the time unit, Wherein, the at least one first cell and the at least one second cell are in the same frequency band or in two different frequency bands.

13. The method according to claim 1, comprising: Receiving the configuration of the at least one first cell and the configuration of the at least one second cell from the radio access network node; Determining that the at least one first cell is configured as downlink within a time unit; And Share at least one uplink-related capability from the at least one first cell to the at least one second cell during the time unit, wherein the at least one first cell and the at least one second cell are in the same frequency band or in two different frequency bands.

14. The method according to claim 1, comprising: Receiving the configuration of the at least one first cell and the configuration of the at least one second cell from the radio access network node; Determining that the at least one first cell is configured as an uplink within a time unit; And Sharing at least one downlink-related capability from the at least one first cell to the at least one second cell during the time unit, wherein the at least one first cell and the at least one second cell are in the same frequency band or in two different frequency bands.

15. The method according to claim 1, wherein, The at least one first frequency band includes two or more first frequency bands, and the method comprises: Receiving the configuration of one or more cells in the two or more first frequency bands and the configuration of one or more cells in the at least one second frequency band from the radio access network node; Determining that all of the one or more cells in the two or more first frequency bands are deactivated; and Sharing the at least one capability from at least one of the two or more first frequency bands to the at least one second frequency band.

16. The method according to claim 1, wherein, The at least one first frequency band includes two or more first frequency bands, and the method comprises: Receiving the configuration of one or more cells in the two or more first frequency bands and the configuration of one or more cells in the at least one second frequency band from the radio access network node; Determining that all of the one or more cells in the two or more first frequency bands are in a dormant state; and Sharing the at least one capability from at least one of the two or more first frequency bands to the at least one second frequency band.

17. The method according to claim 1, wherein, The at least one first frequency band includes two or more first frequency bands, and the method comprises: Receiving the configuration of one or more cells in the two or more first frequency bands and the configuration of one or more cells in the at least one second frequency band from the radio access network node; Determining that all of the one or more cells in the two or more first frequency bands are in a discontinuous reception (DRX) off state; and Sharing the at least one capability from at least one of the two or more first frequency bands to the at least one second frequency band.

18. The method according to claim 1, wherein The at least one first frequency band includes two or more first frequency bands, and the method comprises: Receiving the configuration of one or more cells in the two or more first frequency bands and the configuration of one or more cells in the at least one second frequency band from the radio access network node; Determining that all of the one or more cells in the two or more first frequency bands are not scheduled within a time unit; and During the time unit, share the at least one capability from at least one of the two or more first frequency bands to the at least one second frequency band.

19. The method according to claim 1, wherein The at least one first cell includes two or more first cells, and the method includes: Receiving the configurations of the two or more first cells and the configuration of the at least one second cell from the radio access network node; Determining that the two or more first cells are deactivated; and Sharing the at least one capability from at least one of the two or more first cells to the at least one second cell, wherein the two or more first cells and the at least one second cell are in the same frequency band or in separate frequency bands.

20. The method according to claim 1, wherein, The at least one first cell includes two or more first cells, and the method includes: Receiving the configurations of the two or more first cells and the configuration of the at least one second cell from the radio access network node; Determining that the two or more first cells are in a dormant state; and Sharing the at least one capability from at least one of the two or more first cells to the at least one second cell, wherein the two or more first cells and the at least one second cell are in the same frequency band or in separate frequency bands.

21. The method according to claim 1, wherein, The at least one first cell includes two or more first cells, and the method includes: Receiving the configurations of the two or more first cells and the configuration of the at least one second cell from the radio access network node; Determining that the two or more first cells are in a discontinuous reception (DRX) off state; and Sharing the at least one capability from at least one of the two or more first cells to the at least one second cell, wherein the two or more first cells and the at least one second cell are in the same frequency band or in separate frequency bands.

22. The method according to claim 1, wherein, The at least one first cell includes two or more first cells, and the method includes: Receiving the configurations of the two or more first cells and the configuration of the at least one second cell from the radio access network node; Determining that the two or more first cells are not scheduled within a time unit; During the time unit, sharing the at least one capability from at least one of the two or more first cells to the at least one second cell, wherein the two or more first cells and the at least one second cell are in the same frequency band or in separate frequency bands.

23. The method according to any one of claims 1 to 22, wherein, The at least one capability includes at least one of the following: The number of physical downlink shared channels (PDSCHs) received in one time slot; The number of physical uplink shared channels (PUSCHs) transmitted in one time slot; Downlink (DL) bandwidth; Uplink (UL) bandwidth; The number of activated bandwidth parts (BWPs); The number of configured BWPs; The number of downlink control information (DCI) sizes; The number of blind decoding / control channel element (BD / CCE) budgets; Number of Transmission Configuration Indicator (TCI) states; Number of Multiple-Input Multiple-Output (MIMO) layers; Number of Synchronization Signal Block (SSB) or Channel State Information Reference Signal (CSI-RS); Number of Configured Grant Physical Uplink Shared Channel (PUSCH) or Semi-Persistent Scheduling (SPS) Physical Downlink Shared Channel (PDSCH); Number of Hybrid Automatic Repeat reQuest (HARQ) processes; Timing information based on SSB or Tracking Reference Signal (TRS).

24. The method according to claim 1, wherein, The magnitude of the at least one capability of the at least one first frequency band or at least one first cell is represented as X1, and wherein the magnitude of the capability of the at least one second frequency band or at least one second cell is represented as X2, Wherein, the method includes: sharing the at least one capability from the at least one first frequency band or the at least one first cell to the at least one second frequency band or the at least one second cell, such that the shared capability of the at least one second frequency band or the at least one second cell is X, where X = X1 + X2.

25. The method according to claim 24, wherein The at least one capability of the at least one first frequency band or the at least one first cell and the capability of the at least one second frequency band or the at least one second cell are the number of Physical Downlink Shared Channel (PDSCH) per time slot, wherein the wireless terminal device receives X = X1 + X2 Frequency Division Multiplexing (FDM) PDSCH per time slot for the at least one second frequency band or the at least one second cell.

26. The method according to claim 24, wherein The at least one capability of the at least one first frequency band or the at least one first cell and the capability of the at least one second frequency band or the at least one second cell are the number of Downlink (DL) Bandwidth Part (BWP) per cell, wherein the wireless terminal device can activate X = X1 + X2 DL BWPs per cell for the at least one second frequency band or the at least one second cell.

27. The method according to claim 1, wherein The magnitude of the at least one capability of the at least one first frequency band or the at least one first cell is represented as X1, and wherein the magnitude of the capability of the at least one second frequency band or the at least one second cell is represented as X2, Wherein, the method includes: sharing the at least one capability from the at least one first frequency band or the at least one first cell to the at least one second frequency band or the at least one second cell, such that the shared capability of the at least one second frequency band or the at least one second cell is X, where X2 < X ≤ X1 + X2, and wherein X is configured by a higher layer configuration.

28. The method according to claim 1, wherein The first frequency band and the second frequency band are a frequency band pair, and wherein the magnitude of the at least one capability of the at least one first frequency band and the magnitude of the capability of the at least one second frequency band without sharing are represented as X1, and Wherein, the method includes: sharing the at least one capability from the at least one first frequency band to the at least one second frequency band, such that the shared capability of the at least one second frequency band is 2 * X1.

29. The method according to claim 1, wherein The magnitude of the at least one capability of the at least one first frequency band and the magnitude of the capability of the at least one second frequency band that is not shared are set for the entire wireless terminal device and represented as X1, and wherein, the method includes: sharing the at least one capability from the at least one first frequency band to the at least one second frequency band such that the shared capability of the at least one second frequency band is 2*X1.

30. The method according to claim 1, wherein, The wireless terminal device configures cells in K frequency bands, where the K frequency bands include the at least one first frequency band and the at least one second frequency band, and wherein the wireless terminal device indicates the values X1, X2, ..., X of the at least one capability for each frequency band K , where K is an integer and K ≥ 3, Wherein, the method further includes: sharing the at least one capability for all frequency bands except the second frequency band among the K frequency bands to the second frequency band, so that the shared capability X for the second frequency band is Where k is an integer and 1 ≤ k ≤ K.

31. The method according to claim 1, wherein The wireless terminal device is configured with K cells, the K cells including the at least one first cell and the at least one second cell, and wherein the wireless terminal device indicates the values X1, X2, ..., X of the at least one capability for each cell K , where K is an integer and K ≥ 3 Wherein, the method further includes: sharing the at least one capability for all cells except the second cell among the K cells to the second cell, such that the shared capability X for the second cell is where k is an integer and 1 ≤ k ≤ K.

32. The method according to claim 1, wherein The wireless terminal device configures cells in K frequency bands, where the K frequency bands include the at least one first frequency band and the at least one second frequency band, and wherein the wireless terminal device indicates values X1, X2, ..., X of the at least one capability for each frequency band K , where K is an integer and K ≥ 3, Wherein, the method further includes: sharing the at least one capability for all frequency bands among the K frequency bands except the second frequency band to the second frequency band, such that the shared capability X for the second frequency band is, and where k is an integer and 1 ≤ k ≤ K, and X i is an indication value for the second frequency band, and wherein X is configured by higher layer configuration.

33. The method according to claim 1, wherein The wireless terminal device is configured with K cells, the K cells including the at least one first cell and the at least one second cell, and wherein the wireless terminal device indicates, for each cell, values X1, X2, ..., X of the at least one capability K , where K is an integer and K ≥ 3, Wherein, the method further includes: sharing the at least one capability for all cells except the second cell among the K cells to the second cell, such that the shared capability X for the second cell is, and where k is an integer and 1 ≤ k ≤ K, and X i is an indication value for the second cell, and wherein X is configured by higher layer configuration.

34. The method according to claim 1, wherein The wireless terminal device is configured with a combination of K frequency bands, the combination of K frequency bands includes the at least one first frequency band and the at least one second frequency band, and wherein, the wireless terminal device indicates the value X1 of the at least one capability for each frequency band, where K is an integer and K≥3, wherein, the method further includes: sharing the at least one capability for all frequency bands among the K frequency bands except the second frequency band to the second frequency band such that the shared capability X for the second frequency band is X = K·X1.

35. The method according to claim 1, wherein The wireless terminal device is configured with K frequency bands, the K frequency bands include the at least one first frequency band and the at least one second frequency band, and wherein, the wireless terminal device indicates the per-wireless-terminal-device value X1 of the at least one capability for each frequency band, where K is an integer, and K≥3, wherein, the method further includes: sharing the at least one capability for all frequency bands among the K frequency bands except the second frequency band to the second frequency band such that the shared capability X for the second frequency band is X = K·X1.

36. The method according to claim 1, comprising: Obtain timing information for the at least one second frequency band or the at least one second cell based on a synchronization signal block SSB or other tracking reference signal TRS or channel state information reference signal CSI-RS transmitted on the at least one second frequency band or the at least one second cell.

37. The method according to claim 1, includes: Indicating to the radio access network node a frequency band pair including the at least one first frequency band and the at least one second frequency band, wherein, the at least one capability for one frequency band in the frequency band pair can be shared to the other frequency band in the frequency band pair.

38. The method according to claim 1, includes: Indicating to the radio access network node a frequency band pair including the at least one first frequency band and the at least one second frequency band, and a sharing direction from the at least one first frequency band to the at least one second frequency band.

39. The method according to claim 1, wherein, The at least one first cell and the at least one second cell are within the same frequency band, The method includes: indicating to the radio access network node that the frequency band including the at least one first cell and the at least one second cell is a frequency band that supports sharing the at least one capability from the at least one first cell to the at least one second cell.

40. The method according to claim 1, includes: Indicating to the radio access network node a frequency band combination including the at least one first frequency band and the at least one second frequency band, wherein, the at least one capability for one or more frequency bands in the frequency band combination can be shared to another frequency band in the frequency band combination.

41. The method according to claim 1, comprising: indicating a capability list to the radio access network node, the capability list including at least one capability that the wireless terminal device can share from one frequency band or cell to another frequency band or cell.

42. The method according to claim 1, comprising: receiving, via radio resource control (RRC) signaling, a media access control control element (MAC-CE), or downlink control information (DCI), communication from the radio access network node for triggering sharing.

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

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

45. A method performed by a radio access network node, the method comprising: receiving an indication of capability sharing information from a wireless terminal device; and communicating with the wireless terminal device according to the capability sharing information.

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

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

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

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

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

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

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

56. The method according to claim 45, comprising: Transmit 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 not scheduled within a time unit.

57. The method according to claim 45, comprising: Transmit 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 is configured as downlink within a time unit.

58. The method according to claim 45, comprising: Transmit 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 is configured as uplink within a time unit.

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

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

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

62. The method according to claim 45, comprising: Transmit the configurations of one or more cells in two or more first frequency bands and the configurations of one or more cells in at least one second frequency band to the wireless terminal device, wherein none of the one or more cells in the two or more first frequency bands of the wireless terminal device are scheduled within a time unit.

63. The method according to claim 45, comprising: Transmit the configurations of two or more first cells and the configurations 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: Transmit the configurations of two or more first cells and the configurations 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 the sleep state.

65. The method according to claim 45, comprising: Transmit the configurations of two or more first cells and the configurations 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 the discontinuous reception (DRX) off state.

66. The method according to claim 45, comprising: Transmit the configurations of two or more first cells and the configurations of at least one second cell to the wireless terminal device, wherein none of the two or more first cells of the wireless terminal device are scheduled within a time unit.

67. The method according to claim 45, comprising: Receive an indication of a frequency band pair from the wireless terminal device, wherein at least one capability for one frequency band in the frequency band pair can be shared to the other frequency band in the frequency band pair.

68. The method according to claim 67, comprising: Receive a sharing direction from the wireless terminal device.

69. The method according to claim 45, comprising: Receive an indication from the wireless terminal device that a frequency band including at least one first cell and at least one second cell is a frequency band that supports sharing 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: Receive an indication of a frequency band combination including at least one first frequency band and at least one second frequency band from the wireless terminal device, wherein at least one capability for one or more frequency bands in the frequency band combination can be shared to the other frequency band in the frequency band combination.

71. The method according to claim 45, comprising: Receive an indication of a list of capabilities of the wireless terminal device that can be shared from one frequency band or cell to another frequency band or cell from the wireless terminal device.

72. The method according to claim 45, comprising: transmitting a communication for triggering sharing to the wireless terminal device via radio resource control (RRC) signaling, media access control control element (MAC-CE), or downlink control information (DCI).

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

74. The method according to claim 72, Among them, wherein the communication indicates suspension of the SCell and triggers sharing from the SCell.

75. The method according to any one of claims 45 - 74, wherein The capability sharing information includes: an indication that at least one capability can be shared between at least one first frequency band or cell and a second frequency band or cell, wherein the at least one capability includes at least one of the following items: the number of physical downlink shared channels (PDSCHs) received in one time slot; the number of physical uplink shared channels (PUSCHs) transmitted in one time slot; downlink (DL) bandwidth; uplink (UL) bandwidth; the number of activated bandwidth parts (BWPs); the number of configured BWPs; the number of downlink control information (DCI) sizes; the number of blind decoding / control channel element (BD / CCE) budgets; the number of transmission configuration indicator (TCI) states; the number of multiple-input multiple-output (MIMO) layers; the number of synchronization signal blocks (SSBs) or channel state information reference signals (CSI-RSs); the number of configured grants for PUSCH or semi-persistent scheduling (SPS) PDSCH; the number of hybrid automatic repeat request (HARQ) processes; timing information based on SSB or tracking reference signal (TRS).

76. An apparatus for wireless communication, comprising a processor configured to perform the method according to any one of claims 1 to 75.

77. A non-transitory computer-readable medium having code stored thereon, which, when executed by a processor, causes the processor to implement the method according to any one of claims 1 to 75.

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