Abstract: A terminal apparatus for communicating with a base station apparatus by using a direct path and an indirect path determines whether a signaling radio bearer is configured on the direct path in a case that radio link failure is detected on the indirect path and a signaling radio bearer is not configured with a split bearer, and transmits, via the signaling radio bearer, information indicating that the radio link failure has occurred on the indirect path in a case that the signaling radio bearer is determined to be configured on the direct path.

Abstract: A terminal apparatus for communicating with a base station apparatus by using a direct path and an indirect path determines whether a signaling radio bearer is configured on the indirect path in a case that radio link failure is detected on the direct path and the signaling radio bearer is not configured with a split bearer, and a transmitter transmits information indicating that the radio link failure has occurred on the direct path via a sidelink signaling radio bearer configured between the terminal apparatus and the relay terminal apparatus in a case that the signaling radio bearer is determined to not be configured on the indirect path.

Abstract: A terminal apparatus for communicating with a base station apparatus by using a direct path and an indirect path determines whether a signaling radio bearer is configured on an indirect path in a case that radio link failure is detected on the direct path, and transmits information indicating that the radio link failure has occurred on the direct path via the signaling radio bearer in a case that the signaling radio bearer is determined to be configured on the indirect path.

Abstract: A terminal apparatus for communicating with a base station apparatus by using a second cell group including a PSCell considers a measurement object including first information as a first measurement object group, considers a measurement object not including the first information as a second measurement object group, and based on the second cell group being in a deactivated state, does not measure the first measurement object group or measures the first measurement object group in accordance with a relaxed requirement.

Abstract: A terminal apparatus for communicating with a base station apparatus by using a second cell group including a PSCell switches an Active DL BWP in the PSCell to a first active downlink BWP, based on deactivation of the second cell group, and performs radio link monitoring by using a reference signal for radio link monitoring configured for the first active downlink BWP.

Abstract: Provided is a method applied to a terminal apparatus for communicating with a base station apparatus. The method includes the steps of: receiving a first RRC message including a parameter related to a first cell group from the base station apparatus; and transmitting a random access preamble in an SpCell of the first cell group, based on reception of the first RRC message. The random access preamble is transmitted in the SpCell, based on first information being included in the first RRC message and a time alignment timer, in a primary TA group of the first cell group, which is not running.

Abstract: A terminal apparatus includes a receiver configured to receive data from a base station apparatus, and a processing unit. The processing unit maintains a first state variable in a receiving PDCP entity of the terminal apparatus, and performs processing of, in the maintaining, setting, based on a fact that the data to be received from the base station apparatus is data of an MBS, an initial value of a sequence number part of the first state variable as a first value and setting based on a fact that the data to be received from the base station apparatus is at least not the data of the MBS, the initial value of the first state variable to 0.

Abstract: A terminal apparatus configured with a first cell group and a second cell group includes a processing unit configured to trigger a PHR, and a transmitter configured to transmit the triggered PHR to a base station apparatus. The PHR is triggered by the processing unit, based on activation of the second cell group.

Abstract: A terminal apparatus determines whether information (first information) indicating whether a state of a secondary cell group is to be changed based on scg-State is included in the RRC signaling, in a case that the first information is not included in the RRC signaling, the state of the secondary cell group is changed based on whether the scg-State is included in the RRC signaling, and in a case that the first information is included in the RRC signaling, the state of the secondary cell group is not changed based on whether the scg-State is included in the RRC signaling.

Abstract: A terminal apparatus determines whether to delete all entries included in an entry list held by the terminal apparatus in a case that an RRC connection reconfiguration is performed, deletes all entries included in the entry list in a case that it is determined to delete all entries included in the entry list, and does not delete one or more entries included in the entry list in a case that it is determined not to delete all entries included in the entry list.

Abstract: A terminal apparatus determines whether a candidate special cell (SpCell) associated with a conditional reconfiguration information element of an entry included in an entry list is identical to a special cell (SpCell) currently configured for the terminal apparatus, and does not cause an execution condition to be evaluated, the execution condition being included in the entry including the conditional reconfiguration information element of which the associated candidate SpCell is identical to the SpCell currently configured for the terminal apparatus.

Abstract: A phase difference film formed of a resin containing a polymer having crystallizability, wherein: a coefficient of variation CV(Re) of an in-plane retardation of the phase difference film at a measurement wavelength of 590 nm is 1.0% or less.

Abstract: A phase difference film formed of a resin containing a polymer having crystallizability, wherein: an NZ factor thereof is less than 1.0; and a haze thereof is less than 1.0%.

Abstract: An optical layered body including: a substrate layer formed of a resin containing a crystallizable polymer A; and a first surface layer formed of a resin containing an amorphous polymer B, wherein a glass transition temperature TgA of the crystallizable polymer A and a glass transition temperature TgB of the amorphous polymer B satisfy TgB>TgA, a crystallization temperature TcA of the crystallizable polymer A and the glass transition temperature TgB of the amorphous polymer B satisfy TcA?10° C.?TgB?TcA?60° C., the first surface layer has a plane orientation coefficient P that satisfies P?0.01, and a ratio of a thickness of the substrate layer relative to a total thickness of the optical layered body is 25% or more.

Abstract: A long-length film formed of a resin containing a polymer having crystailizability, wherein the long-length film has an orientation axis perpendicular to a long side direction of the long-length film, the long-length film has an Nz factor Nz1 satisfying (formula 1), the long-length film has a birefringence ?n satisfying (formula 2), and the polymer has a crystallization degree X satisfying (formula 3): 1.0?Nz1?1.15??(formula 1) 0.01??n?0.1??(formula 2) 15%?X??(formula 3).

Abstract: An optical layered body including: a substrate layer formed of a resin containing a crystallizable polymer A; and a first surface layer formed of a resin containing an amorphous polymer B, wherein a glass transition temperature TgA of the crystallizable polymer A and a glass transition temperature TgB of the amorphous polymer B satisfy TgB>TgA, a crystallization temperature TcA of the crystallizable polymer A and the glass transition temperature TgB of the amorphous polymer B satisfy TcA?10° C.?TgB?TcA?60° C., the first surface layer has a plane orientation coefficient P that satisfies P?0.01, and a ratio of a thickness of the substrate layer relative to a total thickness of the optical layered body is 25% or more.

Abstract: A layered film includes first, second and third layers which are formed of first, second and third resins, respectively, and provided in this order. The second resin has a glass transition temperature that is lower than those of the first and third resins. The first and third resins have an indentation elastic modulus of 2200 MPa or more measured using a film of the first resin having a thickness of 100 ?m; and a water vapor transmission rate of 5 g/m2·day or less measured in accordance with JIS K7129 B (1992) using a film of the first resin having a thickness of 100 ?m. The layered film has a ratio of a sum of thicknesses of the first and third layers relative to a thickness of the second layer falling within a range of 1 or more and 4 or less.

Abstract: An optical layered body including: a substrate layer and a first surface layer, wherein the substrate layer contains a crystallizable polymer containing an alicyclic structure, and the first surface layer contains an amorphous polymer.

Abstract: Having a layer B formed of a resin “b” having a negative intrinsic birefringence value; and layers A formed of a resin “a” having a positive intrinsic birefringence value and formed on both surfaces of the layer B, wherein the resin “b” includes a styrene-based polymer, the resin “a” includes a polycarbonate, and a difference in average refractive index between the resin “b” and the resin “a” is 0.01 or more.

Abstract: A long-length film formed of a resin containing a polymer having crystailizability, wherein the long-length film has an orientation axis perpendicular to a long side direction of the long-length film, the long-length film has an Nz factor Nz1 satisfying (formula 1), the long-length film has a birefringence ?n satisfying (formula 2), and the polymer has a crystallization degree X satisfying (formula 3): 1.0?Nz1?1.15??(formula 1) 0.01??n?0.1??(formula 2) 15%?X??(formula 3).