Abstract: A method of encoding video data by an electronic device is provided. A plurality of picture parameters included in a picture header of a picture in the video data is signaled into a bitstream. A present flag included in a sub-picture header of a sub-picture generated by dividing the picture is signaled into the bitstream. The electronic device determines, based on the present flag, whether a specific one of a plurality of sub-picture parameters is determined based on the sub-picture header or the picture header. The specific one of the plurality of sub-picture parameters corresponds to the specific one of the plurality of picture parameters. The sub-picture is reconstructed based on the specific one of the plurality of sub-picture parameters when the specific one of the plurality of sub-picture parameters is determined from the sub-picture header.

Abstract: A handover control method of a source base station (BS). The method includes: transmitting a conditional handover request to a target BS; when a handover request confirmation message is received from the target BS, transmitting a conditional handover message to a user equipment (UE); and receiving a conditional handover complete message from the target BS in response to a Radio Source Control (RRC) connection reconfiguration complete message being sent from the UE to the target BS.

Abstract: The embodiments of the disclosure provide a method for maintaining multi-SIM (Subscriber Identity Module) configuration and user equipment (UE). The method includes: receiving, by the UE, a first multi-SIM support information from a first cell, wherein the first multi-SIM support information is generated and transmitted from a second cell to the first cell via an inter-node signaling from the second cell to the first cell, and the first cell and the second cell belong to a first network; transmitting, by the UE, a multi-SIM assistance information message to the second cell, wherein the multi-SIM assistance information message is determined based on the first multi-SIM support information.

Abstract: A user device for implementing error handling is provided. The user device comprises a control unit that establishes, in a Protocol Data Unit (PDU) session establishment procedure using a Local Area Data Network (LADN) Data Network Name (DNN), a PDU session for the LADN; and a transceiver unit that prohibits transmission of a PDU session modification request message for the PDU session, in a PDU session modification procedure, based on reception of a specific cause value, wherein the LADN DNN is provided by the user device in the PDU session establishment procedure.

Abstract: A terminal apparatus includes: a reception unit which receives, from a base station apparatus, a physical downlink control channel including downlink control information in a search space specific to the terminal apparatus; and a control unit which determines the number of bits of a time domain resource allocation field in the downlink control information. The time domain resource allocation field is a time domain resource allocation field for a physical downlink shared channel. A default table indicates a time domain resource allocation configuration for the physical downlink shared channel. When a parameter is not received, the number of bits of the time domain resource allocation field is determined based on the number of the in the default table.

Abstract: A method of deriving intra prediction data based on a planar prediction mode includes the following operations: obtaining multiple first reconstructed row samples and a second reconstructed row sample in an adjacent above row to a current block, the first reconstructed row samples extending from first to last columns of the current block, the second reconstructed row sample corresponding to an adjacent right column to the current block; obtaining multiple first reconstructed column samples and a second reconstructed column sample in an adjacent left column to the current block, the first reconstructed column samples extending from first to last rows of the current block, the second reconstructed column sample corresponding to an adjacent below row to the current block; and deriving the intra prediction data corresponding to the current block based on a width and a height of the current block and the obtained reconstructed row and column samples.

Abstract: A method of decoding a bitstream by an electronic device is provided. A block unit is determined from an image frame received from the bitstream. An intra prediction mode index corresponding to one of wide-angle candidate modes is determined for the block unit. The electronic device determines whether the intra prediction mode index is different from predefined indices each corresponding to one of predefined wide-angle modes in the wide-angle candidate modes. Filtered samples are generated based on reference samples neighboring the block unit. The filtered samples are generated by an interpolation filter when the intra prediction mode index is different from the predefined indices. The filtered samples are generated by a reference filter when the intra prediction mode index is equal to at least one of the predefined indices. The block unit is reconstructed based on the filtered samples along a mode direction of the intra prediction mode index.

Abstract: A method for PDCCH monitoring performed by a UE is provided. The method includes performing the PDCCH monitoring in a first group associated with at least one first PDCCH monitoring configuration; receiving, from a base station, DCI comprising an indicator; performing the PDCCH monitoring in a second group associated with at least one second PDCCH monitoring configuration; and stopping the PDCCH monitoring in the first group after receiving the indicator.

Abstract: A method for wireless communication performed by a user equipment (UE) is provided. The UE includes a plurality of antenna panels. The method includes transmitting, to a Base Station (BS), a UE capability message that includes a number of the plurality of antenna panels; and transmitting, to the BS, a panel report that includes information of the plurality of antenna panels, the information associated with at least one of a Synchronization Signal Block (SSB) and a Channel State Information Reference Signal (CSI-RS).

Abstract: A terminal apparatus and a method for communicating with a base station apparatus are provided. The method includes receiving Radio Resource Control (RRC) signaling and a first DCI format addressed to a Cell-Radio Network Temporary Identifier (C-RNTI); determining a first priority of a first uplink grant based on a priority field in the RRC signaling; and transmitting a first Physical Uplink Shared Channel (PUSCH) scheduled by the first uplink grant and a second PUSCH scheduled by a second uplink grant. The first uplink grant is a configured uplink grant notified by the RRC signaling. The second uplink grant is notified by the first DCI format.

Abstract: A user equipment (UE) and a method performed by the UE are provided. The method includes transitioning from a radio resource control (RRC) inactive (RRC_INACTIVE) state to an RRC idle (RRC_IDLE) state upon determining that the UE has failed to find a suitable cell and camped on an acceptable cell; and discarding a radio access network (RAN) notification area (RNA) configuration that comprises at least one of a list of tracking area identities (IDs) or a list of RAN area IDs in response to the transitioning from the RRC_INACTIVE state to the RRC_IDLE state. The acceptable cell fulfills a minimum set of requirements to initiate an emergency call and to receive one or more Earthquake & Tsunami Warning System (ETWS) and Commercial Mobile Alert System (CMAS) notifications. The suitable cell provides normal services. The acceptable cell provides limited services.

Abstract: A method performed by a user equipment for a beam operation is provided. The method includes: receiving an RRC configuration for configuring a set of joint TCI states; receiving, from the BS, a MAC CE for activating a subset of joint TCI states in the set of joint TCI states, the MAC CE is used to map the subset of joint TCI states to codepoints of a TCI field in DCI; receiving the DCI indicating a joint TCI state included in the subset of joint TCI states activated by the MAC CE; determining whether the DCI includes a DL assignment; transmitting, in response to reception of the DCI, first HARQ-ACK information in a case that the DCI does not include the DL assignment; and transmitting, in response to the reception of the DCI and reception of a PDSCH, second HARQ-ACK information in a case that the DCI includes the DL assignment.

Abstract: A method of decoding a bitstream by an electronic device is provided. The method determines a block unit from an image frame received from the bitstream. To reconstruct the block unit, the method receives, from a candidate list, first motion information having a first list flag for selecting a first reference frame and second motion information having a second list flag for selecting a second reference frame. The method then stores a predefined one of the first and second motion information for a sub-block determined in the block unit when the first list flag is identical to the second list flag.

Abstract: A method for a user equipment (UE) for cell selection while the UE is in a radio resource control (RRC) Inactive state is provided. The method receives, via control signaling, a configuration indicating a target frequency carrier and a corresponding target core network (CN) type. The method then causes the UE to transition from an RRC Connected state to the RRC Inactive state based on the received configuration. While the UE is in the RRC Inactive state, the method selects a suitable cell among a plurality of suitable cells that are associated with the target frequency carrier. The method selects the suitable cell irrespective of the received target CN type.

Abstract: A method performed by a UE for saving power is provided. The method includes: receiving, from a Base Station (BS), control information that includes a Physical Downlink Control Channel (PDCCH) monitoring adaptation field, wherein the PDCCH monitoring adaptation field indicates a PDCCH skipping function; and monitoring, regardless of the PDCCH skipping function indicated by the PDCCH monitoring adaptation field, a PDCCH in a case that a Scheduling Request (SR) is transmitted on a Physical Uplink Control Channel (PUCCH) and is determined to be pending.

Abstract: A method performed by a BS for CHO is provided. The method includes transmitting a CHO command to a UE, the CHO command including a CHO command ID and a measurement ID associated with the CHO command ID; causing the UE to execute the CHO command to handover to a target BS when a trigger condition associated with the measurement ID is fulfilled; causing the UE to forgo transmitting the measurement report during the execution of the CHO command despite the UE being configured, via a report configuration associated with the measurement ID, to transmit the measurement report; transmitting, to the UE, a message that causes the UE to remove the CHO command; and after transmitting the message to the UE, determining that the report configuration is removed by the UE without transmitting, to the UE, an instruction to remove the report configuration.

Abstract: A base station (BS) and a method for wireless communication are provided. The method includes transmitting a first radio resource control (RRC) configuration that configures a radio link monitoring configuration that includes a beam failure detection (BFD) timer and a beam failure indication (BFI) count threshold. The first RRC configuration enables a user equipment (UE) to: start or restart the BFD timer by a medium access control (MAC) entity of the UE each time a BFI is received from a lower layer; and initiate a beam failure recovery (BFR) procedure upon determining that the number of the received BFIs is greater than or equal to the BFI count threshold. The method further includes transmitting a second RRC configuration that reconfigures the radio link monitoring configuration. The second RRC configuration enables the UE to set the BFI counter to zero in response to receiving the second RRC configuration.

Abstract: A method of transmitting a Physical Uplink Control Channel (PUCCH) for a user equipment (UE) is provided. The method includes receiving a first Radio Resource Control (RRC) configuration including a first PUCCH resource configuration and a second PUCCH resource configuration, receiving a first Downlink Control Information (DCI) format that schedules a first Physical Downlink Shared Channel (PDSCH) and a second DCI format that schedules a second PDSCH, determining a first PUCCH for a first Hybrid Automatic Repeat reQuest (HARQ) acknowledgement (ACK) codebook corresponding to the first PDSCH according to the first PUCCH resource configuration, determining a second PUCCH for a second HARQ-ACK codebook corresponding to the second PDSCH according to the second PUCCH resource configuration, and transmitting the first PUCCH when the first PUCCH overlaps the second PUCCH in a time domain, the first HARQ-ACK codebook and the second HARQ-ACK codebook multiplexed in the first PUCCH.

Abstract: A terminal apparatus of the present invention receives setting of an initial DL BWP by using an RRC message, the setting of the initial DL BWP comprises setting a first parameter and a second parameter of a CORESET #0, a value of an identifier of the CORESET #0 is 0, the first parameter represents the size of the CORESET #0, and the second parameter represents the size of the initial DL BWP. The terminal apparatus of the present invention receives a DCI format that schedules a PDSCH in an active DL BWP, and identifies, based on a field in the DCI format, a resource block set to which the PDSCH is allocated. A value of the field is determined based on the size of the DL BWP, the start resource block, and the number of consecutively allocated resource blocks. The size of the DCI format in a USS is determined based on the size of the CORESET #0, and when the field is applied to the active DL BWP, the size of the DL BWP is the size of the CORESET #0.

Abstract: A wireless access node of a radio access network (RAN) that communicates over a radio interface with a wireless terminal. The wireless access node comprises transmitter circuitry and receiver circuitry. The transmitter circuitry is configured to transmit at least one message to the wireless terminal. The at least one message is configured to activate a first signaling data path and a second signaling data path. The first signaling data path and the second signaling data path are established between the wireless access node and the wireless terminal. Signaling data on the first signaling data path is relayed by a wireless relay node.