Provided is a technology capable of securing satisfactory communication quality. A communication system includes a user equipment, and a base station configured to be connected to the user equipment to perform radio communication with the user equipment. The user equipment performs radio communication with a beam. When the user equipment detects a beam disappearance state being a state incapable of maintaining communication quality with the base station, the user equipment transmits a notification of the beam disappearance state with a beam having a wider half width than a half width before detection of the beam disappearance state.

A method and apparatus. The method includes: a terminal device sends a carrier aggregation (CA) capability reporting message to a network device, where the CA capability reporting message includes a frequency separation class of each of at least one radio frequency (RF) channel of the terminal device and a power amplifier (PA) architecture of the terminal device. The PA architecture indicates that the PA architecture that can be used by the terminal device to support CA is a single PA and/or a plurality of PAs. The network device can improve CA resource configuration flexibility by using the foregoing method.

A multi-carrier communication method, a terminal device, and a network device. The terminal device comprises a processor and a memory. The memory is configured to store a computer program. The processor is configured to call and run the computer program stored in the memory, and implement sending multi-carrier communication capability information to a network device, the multi-carrier communication capability information is configured to indicate the network device to perform a multi-carrier communication configuration for the terminal device.

The systems and methods described herein support efficient SDM operation in IAB networks. A first node receives a semi-static resource allocation from a CU based on at least one multiplexing capability of the first node. The first node communicates with a second node based on the semi-static resource allocation. The first node also transmits a change request to the CU to modify the semi-static resource allocation, and the first node may communicate with the second node based on the modified semi-static resource allocation. The at least one multiplexing capability includes at least one of SDM or FDM, including full duplex or half duplex. The at least one multiplexing capability is also with respect to one or more transmission direction combinations of the first node.

Embodiments include methods for operating a user equipment (UE) in a non-terrestrial network (NTN) that utilizes one or more polarization modes for serving one or more cells. Such methods include sending, to a network node, an indication of one or more polarization capabilities of the UE. Such methods also include transmitting and/or receiving one or more signals or channels in a first cell of the NTN according to the indicated polarization capabilities of the UE. In some embodiments, the indicated polarization capabilities of the UE include: a UE type; one or more polarization modes supported by the UE; a polarization correspondence between uplink and downlink signals that is supported by the UE; and/or a list of antenna panels supported by the UE and polarization modes supported by the antenna panels. Other embodiments include complementary methods for operating network nodes, and UEs and network nodes configured to perform such methods.

A method, a device, and a non-transitory storage medium are described in which beam configuration management service is provided. A network device of a wireless access network provides the service that includes identifying redundant configurations across carriers associated with a cell group, and links the common beam configurations to these carriers. The service also includes identifying any difference in beam configurations relative to the common beam configurations for a carrier. The service may transmit this beam configuration information in a control plane message to an end device. The end device may use the beam configuration information.

An access point that determines whether an electronic device has multi-band capability is described. During operation, the access point may receive a packet or a frame associated with the electronic device. For example, the access point may determine that the electronic device has the multi-band capability based at least in part on: an operating class of the electronic device; a model of the electronic device; and/or a vendor of the electronic device. Then, based at least in part on information included in the packet or the frame, the access point may determine whether the electronic device has the multi-band capability. Moreover, the access point may selectively provide a transition recommendation addressed to the electronic device based at least in part on the determined multi-band capability.

[Problem] The base station includes a plurality of radio communication units configured to individually support a plurality of communication capabilities, and performs, for a terminal station that is connected to the base station, control for selecting a radio communication unit based on a communication scheme supported in the terminal station. [Solution] Provided is a radio communication method for a radio communication system including a plurality of base stations provided with a plurality of radio communication units for which different communication schemes are settable, and a terminal station configured to perform radio communication with the radio communication unit of the base station by using a specific communication scheme. The radio communication method includes setting, at the base station, for the radio communication units, different communication schemes based on a setting policy of the communication scheme, and a switching policy used for selecting the radio communication unit to which the terminal station is to be connected, collecting, at the base station, communication scheme information on a communication scheme selectable by the terminal station, when the terminal station establishes a connection or a reconnection with the base station, selecting, at the base station, a radio communication unit to which the terminal station is to be connected, in accordance with the communication scheme information, the setting policy, and the switching policy, and updating, at the base station, the setting policy and the switching policy for the radio communication unit.

In order to appropriately control receiving operation in a UE even when a synchronization signal block and a given reference signal overlap with each other in a time resource, a user terminal according to an aspect of the present disclosure includes: a receiving section that receives a synchronization signal block and a given reference signal; and a control section that, when the synchronization signal block and the given reference signal are configured in the same time resource, controls reception of the synchronization signal block and the given reference signal based on a quasi-colocation (QCL) relationship and a subcarrier spacing of the synchronization signal block and the given reference signal.

Facilitating selection of demodulation reference signal port combinations in advanced networks (e.g., 4G, 5G, 6G, and beyond) is provided herein. Operations of a system can comprise evaluating a capability of a mobile device. The operations can also comprise assigning a first group of port combinations for the mobile device based on the capability of the mobile device being a first capability and a second group of port combinations for the mobile device based on the capability of the mobile device being a second capability, resulting in a port combination assignment. The port combination assignment can mitigate a peak-to-average power ratio value.